提出 #57490934

---

ソースコード 拡げる

/*
    Last Weapon is my own algorithms library for competitive programming, it is a fork from ACL with some alternative algorithms and additional features. Use it at your own risk.
    Repo: https://github.com/lychees/last-weapon
    Blog: https://www.shuizilong.com/house
*/
#pragma comment(linker, "/STACK:36777216")
#define LOCAL
#include <functional>
#include <algorithm>
#include <iostream>
#include <fstream>
#include <sstream>
#include <iomanip>
#include <numeric>
#include <cstring>
#include <climits>
#include <cassert>
#include <complex>
#include <cstdio>
#include <string>
#include <vector>
#include <bitset>
#include <queue>
#include <stack>
#include <cmath>
#include <ctime>
#include <list>
#include <set>
#include <map>


using namespace std;

#define REP(i, n) for (int i=0;i<n;++i)
#define FOR(i, a, b) for (int i=a;i<b;++i)
#define DWN(i, b, a) for (int i=b-1;i>=a;--i)
#define REP_1(i, n) for (int i=1;i<=n;++i)
#define FOR_1(i, a, b) for (int i=a;i<=b;++i)
#define DWN_1(i, b, a) for (int i=b;i>=a;--i)

#define ECH(it, A) for (__typeof((A).begin()) it=(A).begin(); it != (A).end(); ++it)
#define rECH(it, A) for (__typeof((A).rbegin()) it=(A).rbegin(); it != (A).rend(); ++it)
#define REP_S(i, str) for (char*i=str;*i;++i)
#define REP_L(i, hd, suc) for (int i=hd;i;i=suc[i])
#define REP_G(i, u) REP_L(i,hd[u],suc)
#define REP_SS(x, s) for (int x=s;x;x=(x-1)&s)
#define DO(n) for ( int ____n = n; ____n-->0; )

#define ALL(A) A.begin(), A.end()
#define LLA(A) A.rbegin(), A.rend()
#define CPY(A, B) memcpy(A, B, sizeof(A))
#define INS(A, P, B) A.insert(A.begin() + P, B)
#define ERS(A, P) A.erase(A.begin() + P)
#define LBD(A, x) (lower_bound(ALL(A), x) - A.begin())
#define UBD(A, x) (upper_bound(ALL(A), x) - A.begin())
#define CTN(T, x) (T.find(x) != T.end())
#define SZ(A) int((A).size())
#define PB push_back
#define MP(A, B) make_pair(A, B)
#define PTT pair<T, T>
#define Ts *this
#define rTs return Ts
#define fi first
#define se second
#define re real()
#define im imag()

#define Rush for(int ____T=RD(); ____T--;)
#define Display(A, n, m) {                      \
  REP(i, n){		                            \
        REP(j, m-1) cout << A[i][j] << " ";     \
        cout << A[i][m-1] << endl;		        \
	}						                    \
}
#define Display_1(A, n, m) {                    \
	REP_1(i, n){		                        \
        REP_1(j, m-1) cout << A[i][j] << " ";   \
        cout << A[i][m] << endl;		        \
	}						                    \
}

typedef long long LL;
typedef double DB;
typedef unsigned uint;
typedef unsigned long long uLL;

typedef vector<int> VI;
typedef vector<char> VC;
typedef vector<string> VS;
typedef vector<LL> VL;
typedef vector<DB> VF;
typedef set<int> SI;
typedef set<string> SS;
typedef map<int, int> MII;
typedef map<string, int> MSI;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef vector<VII> VVII;

template<class T> inline T& RD(T &);
template<class T> inline void OT(const T &);
inline LL RD(){LL x; return RD(x);}
inline DB& RF(DB &);
inline DB RF(){DB x; return RF(x);}
inline char* RS(char *s);
inline char& RC(char &c);
inline char RC();
inline char& RC(char &c){scanf(" %c", &c); return c;}
inline char RC(){char c; return RC(c);}

template<class T0, class T1> inline T0& RD(T0 &x0, T1 &x1){RD(x0), RD(x1); return x0;}
template<class T0, class T1, class T2> inline T0& RD(T0 &x0, T1 &x1, T2 &x2){RD(x0), RD(x1), RD(x2); return x0;}
template<class T0, class T1, class T2, class T3> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3){RD(x0), RD(x1), RD(x2), RD(x3); return x0;}
template<class T0, class T1, class T2, class T3, class T4> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4); return x0;}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4, T5 &x5){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4), RD(x5); return x0;}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline T0& RD(T0 &x0, T1 &x1, T2 &x2, T3 &x3, T4 &x4, T5 &x5, T6 &x6){RD(x0), RD(x1), RD(x2), RD(x3), RD(x4), RD(x5), RD(x6); return x0;}
template<class T0, class T1> inline void OT(const T0 &x0, const T1 &x1){OT(x0), OT(x1);}
template<class T0, class T1, class T2> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2){OT(x0), OT(x1), OT(x2);}
template<class T0, class T1, class T2, class T3> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3){OT(x0), OT(x1), OT(x2), OT(x3);}
template<class T0, class T1, class T2, class T3, class T4> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4, const T5 &x5){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4), OT(x5);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void OT(const T0 &x0, const T1 &x1, const T2 &x2, const T3 &x3, const T4 &x4, const T5 &x5, const T6 &x6){OT(x0), OT(x1), OT(x2), OT(x3), OT(x4), OT(x5), OT(x6);}
inline char& RC(char &a, char &b){RC(a), RC(b); return a;}
inline char& RC(char &a, char &b, char &c){RC(a), RC(b), RC(c); return a;}
inline char& RC(char &a, char &b, char &c, char &d){RC(a), RC(b), RC(c), RC(d); return a;}
inline char& RC(char &a, char &b, char &c, char &d, char &e){RC(a), RC(b), RC(c), RC(d), RC(e); return a;}
inline char& RC(char &a, char &b, char &c, char &d, char &e, char &f){RC(a), RC(b), RC(c), RC(d), RC(e), RC(f); return a;}
inline char& RC(char &a, char &b, char &c, char &d, char &e, char &f, char &g){RC(a), RC(b), RC(c), RC(d), RC(e), RC(f), RC(g); return a;}
inline DB& RF(DB &a, DB &b){RF(a), RF(b); return a;}
inline DB& RF(DB &a, DB &b, DB &c){RF(a), RF(b), RF(c); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d){RF(a), RF(b), RF(c), RF(d); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e){RF(a), RF(b), RF(c), RF(d), RF(e); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e, DB &f){RF(a), RF(b), RF(c), RF(d), RF(e), RF(f); return a;}
inline DB& RF(DB &a, DB &b, DB &c, DB &d, DB &e, DB &f, DB &g){RF(a), RF(b), RF(c), RF(d), RF(e), RF(f), RF(g); return a;}
inline void RS(char *s1, char *s2){RS(s1), RS(s2);}
inline void RS(char *s1, char *s2, char *s3){RS(s1), RS(s2), RS(s3);}

template<class T> inline void RST(T &A){memset(A, 0, sizeof(A));}
template<class T> inline void FLC(T &A, int x){memset(A, x, sizeof(A));}
template<class T> inline void CLR(T &A){A.clear();}

template<class T0, class T1> inline void RST(T0 &A0, T1 &A1){RST(A0), RST(A1);}
template<class T0, class T1, class T2> inline void RST(T0 &A0, T1 &A1, T2 &A2){RST(A0), RST(A1), RST(A2);}
template<class T0, class T1, class T2, class T3> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3){RST(A0), RST(A1), RST(A2), RST(A3);}
template<class T0, class T1, class T2, class T3, class T4> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4), RST(A5);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6){RST(A0), RST(A1), RST(A2), RST(A3), RST(A4), RST(A5), RST(A6);}
template<class T0, class T1> inline void FLC(T0 &A0, T1 &A1, int x){FLC(A0, x), FLC(A1, x);}
template<class T0, class T1, class T2> inline void FLC(T0 &A0, T1 &A1, T2 &A2, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x);}
template<class T0, class T1, class T2, class T3> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x);}
template<class T0, class T1, class T2, class T3, class T4> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x), FLC(A5, x);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void FLC(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6, int x){FLC(A0, x), FLC(A1, x), FLC(A2, x), FLC(A3, x), FLC(A4, x), FLC(A5, x), FLC(A6, x);}
template<class T> inline void CLR(priority_queue<T> &Q){while (!Q.empty()) Q.pop();}
template<class T> inline void CLR(stack<T> &S){while (!S.empty()) S.pop();}
template<class T> inline void CLR(queue<T> &Q){while (!Q.empty()) Q.pop();}

template<class T0, class T1> inline void CLR(T0 &A0, T1 &A1){CLR(A0), CLR(A1);}
template<class T0, class T1, class T2> inline void CLR(T0 &A0, T1 &A1, T2 &A2){CLR(A0), CLR(A1), CLR(A2);}
template<class T0, class T1, class T2, class T3> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3){CLR(A0), CLR(A1), CLR(A2), CLR(A3);}
template<class T0, class T1, class T2, class T3, class T4> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4);}
template<class T0, class T1, class T2, class T3, class T4, class T5> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4), CLR(A5);}
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6> inline void CLR(T0 &A0, T1 &A1, T2 &A2, T3 &A3, T4 &A4, T5 &A5, T6 &A6){CLR(A0), CLR(A1), CLR(A2), CLR(A3), CLR(A4), CLR(A5), CLR(A6);}
template<class T> inline void CLR(T &A, int n){REP(i, n) CLR(A[i]);}

template<class T> inline bool EPT(T &a){return a.empty();}
template<class T> inline T& SRT(T &A){sort(ALL(A)); return A;}
template<class T, class C> inline T& SRT(T &A, C cmp){sort(ALL(A), cmp); return A;}
template<class T> inline T& RVS(T &A){reverse(ALL(A)); return A;}
template<class T> inline T& UNQQ(T &A){A.resize(unique(ALL(A))-A.begin());return A;}
template<class T> inline T& UNQ(T &A){SRT(A);return UNQQ(A);}
template<class T, class C> inline T& UNQ(T &A, C cmp){SRT(A, cmp);return UNQQ(A);}



/** Constant List .. **/ //{

int MOD = int(1e9) + 7;
const int INF = 0x3f3f3f3f;
const LL INFF = 0x3f3f3f3f3f3f3f3fLL;
const DB EPS = 1e-9;
const DB OO = 1e20;
const DB PI = acos(-1.0); //M_PI;

const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, 1, -1};


/** Add On .. **/ //{

template<class T> inline bool checkMin(T &a,const T b){return b < a ? a = b, 1 : 0;}
template<class T> inline bool checkMax(T &a,const T b){return a < b ? a = b, 1 : 0;}
template <class T, class C> inline bool checkUpd(T& a, const T b, C c){return c(b,a) ? a = b, 1 : 0;}
template<class T> inline T min(T a, T b, T c){return min(min(a, b), c);}
template<class T> inline T max(T a, T b, T c){return max(max(a, b), c);}
template<class T> inline T min(T a, T b, T c, T d){return min(min(a, b), min(c, d));}
template<class T> inline T max(T a, T b, T c, T d){return max(max(a, b), max(c, d));}
template<class T> inline T sqr(T a){return a*a;}
template<class T> inline T cub(T a){return a*a*a;}
template<class T> inline T ceil(T x, T y){return (x - 1) / y + 1;}
template<class T> T abs(T x){return x>0?x:-x;}
inline int sgn(DB x){return x < -EPS ? -1 : x > EPS;}
inline int sgn(DB x, DB y){return sgn(x - y);}

template<typename T1, typename T2> istream& operator>>(istream& in, pair<T1, T2>& a) {
    in >> a.fi >> a.se;
    return in;
}
template<typename T, size_t N> istream& operator>>(istream& in, array<T, N>& a) {
    REP(i, N) cin >> a[i];
    return in;
}
template<typename T> istream& operator>>(istream& in, vector<T>& a) {
    REP(i, SZ(a)) in >> a[i];
    return in;
}
template<typename T1, typename T2> ostream& operator<<(ostream& out, pair<T1, T2>& a) {
    out << a.fi << " " << a.se;
    return out;
}
template<typename T, size_t N> ostream& operator<<(ostream& out, array<T, N>& a) {
    REP(i, N-1) out << a[i] << " "; if (N) out << a.back();
    return out;
}
template<typename T> ostream& operator<<(ostream& out, vector<T>& a) {
    REP(i, SZ(a)-1) out << a[i] << " "; if (SZ(a)) out << a.back();
    return out;
}





/** I/O Accelerator Interface .. **/ //{
#define g (c=getchar())
#define d isdigit(g)
#define p x=x*10+c-'0'
#define n x=x*10+'0'-c
#define pp l/=10,p
#define nn l/=10,n
template<class T> inline T& RD(T &x){
    char c;while(g,c!='-'&&!isdigit(c));
    if (c=='-'){x='0'-g;while(d)n;}
    else{x=c-'0';while(d)p;}
    return x;
}
template<class T> inline T& RSD(T &x){
    char c;while(g,c!='-'&&!isdigit(c));
    if (c=='-'){x='0'-g;}
    else{x=c-'0';}
    return x;
}
inline DB& RF(DB &x){
    char c;while(g,c!='-'&&c!='.'&&!isdigit(c));
    if(c=='-')if(g=='.'){x=0;DB l=1;while(d)nn;x*=l;}
        else{x='0'-c;while(d)n;if(c=='.'){DB l=1;while(d)nn;x*=l;}}
    else if(c=='.'){x=0;DB l=1;while(d)pp;x*=l;}
        else{x=c-'0';while(d)p;if(c=='.'){DB l=1;while(d)pp;x*=l;}}
    return x;
}
#undef nn
#undef pp
#undef n
#undef p
#undef d
#undef g
inline char* RS(char *s){
    scanf("%s", s);
    return s;
}

LL last_ans; int Case; template<class T> inline void OT(const T &x){
    cout << x << endl;
}
namespace lastweapon {}
using namespace lastweapon;

const int N = int(2e5) + 9;

namespace ALG{

    template<class T> int LIS(int n, T* a){
        VI b; b.PB(a[0]); FOR(i, 1, n){
            if (b.back() < a[i]) b.PB(a[i]);
            else {
                b[lower_bound(ALL(b), a[i]) - b.begin()] = a[i];
            }
        }
        return SZ(b);
    }

    //template<class T, class C = __typeof less<T>()> int LIS(int n, T* a, C cmp = less<T>()){
    template<class T, class C> int LIS(int n, T* a, C cmp){
        vector<T> b; b.PB(a[0]); FOR(i, 1, n){
            if (cmp(b.back(), a[i])) b.PB(a[i]);
            else {
                b[lower_bound(ALL(b), a[i], cmp) - b.begin()] = a[i];
            }
        }
        return SZ(b);
    }

    template<class T> int LISS(int n, T* a, int* pre, int& lst){
        VI b; b.PB(0); pre[0] = -1; FOR(i, 1, n){
            if (a[b.back()] < a[i]) pre[i] = b.back(), b.PB(i);
            else {
                int l = 0, r = SZ(b); while (l < r){
                    int m = l + r >> 1;
                    if (a[b[m]] < a[i]) l = m + 1;
                    else r = m;
                }
                pre[i] = !r ? -1 : b[r-1];
                b[r] = i;
            }
        }
        lst = b.back();
        return SZ(b);
    }

    //template<class T, class C = __typeof less<T>()> int LISS(int n, T* a, int* pre, int& lst, C cmp = less<T>()){
    template<class T, class C> int LISS(int n, T& a, int* pre, int& lst, C cmp){
        VI b; b.PB(0); pre[0] = -1; FOR(i, 1, n){
            if (cmp(a[b.back()], a[i])) pre[i] = b.back(), b.PB(i); //cout << '!' << endl;
            else {
                int l = 0, r = SZ(b); while (l < r){
                    int m = l + r >> 1;
                    if (cmp(a[b[m]], a[i])) l = m + 1;
                    else r = m;
                }
                pre[i] = !r ? -1 : b[r-1];
                //cout << '?' << endl;
                b[r] = i;
            }
        }

        lst = b.back();
        return SZ(b);
    }
}  using namespace ALG;

int h, w, n, q;
vector<PII> v;

void gao(int x, int* p) {
    if (x >= 0) {
        gao(p[x],p);

        if (p[x] >= 0) {
            DO(v[x].se-v[p[x]].se) putchar('D');
            DO(v[x].fi-v[p[x]].fi) putchar('R');
        } else {
            DO(v[x].se-1) putchar('D');
            DO(v[x].fi-1) putchar('R');
        }
        //cout << x << " " << v[x].fi << " " << v[x].se << endl;
    }
}

int main() {

#ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
#endif
    RD(h, w, n);
    //v.PB({-1, -1});
    REP(i, n) {
        PII a;
        RD(a.second, a.first);
        v.PB(a);
    }
    v.PB({w, h});
    sort(v.begin(), v.end(), [](PII& a, PII& b){
         return a.first < b.first || a.fi == b.fi && a.se < b.se;}
    );
    ++n;

    int lst, p[N+1];
    int ans = LISS(n, v, p, lst, [](PII& a, PII& b){ return a.second <= b.second;});


    PII u = {1, 1};
    int l, r;
    //l = r = 0;
    //p[n] = lst;

    cout << ans-1 << endl;

    gao(lst,p);
}

提出情報

コンパイルエラー

Main.cpp:6: warning: ignoring ‘#pragma comment ’ [-Wunknown-pragmas]
    6 | #pragma comment(linker, "/STACK:36777216")
      | 
Main.cpp: In function ‘std::ostream& operator<<(std::ostream&, std::array<_Tp, _Nm>&)’:
Main.cpp:34:19: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   34 | #define REP(i, n) for (int i=0;i<n;++i)
      |                   ^~~
Main.cpp:224:5: note: in expansion of macro ‘REP’
  224 |     REP(i, N-1) out << a[i] << " "; if (N) out << a.back();
      |     ^~~
Main.cpp:224:37: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
  224 |     REP(i, N-1) out << a[i] << " "; if (N) out << a.back();
      |                                     ^~
Main.cpp: In function ‘std::ostream& operator<<(std::ostream&, std::vector<_Tp>&)’:
Main.cpp:34:19: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   34 | #define REP(i, n) for (int i=0;i<n;++i)
      |                   ^~~
Main.cpp:228:5: note: in expansion of macro ‘REP’
  228 |     REP(i, SZ(a)-1) out << a[i] << " "; if (SZ(a)) out << a.back();
      |     ^~~
Main.cpp:228:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
  228 |     REP(i, SZ(a)-1) out << a[i] << " "; if (SZ(a)) out << a.back();
      |                                         ^~
Main.cpp: In lambda function:
Main.cpp:376:51: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
  376 |          return a.first < b.first || a.fi == b.fi && a.se < b.se;}
      |                                                   ^
Main.cpp: In function ‘int main()’:
Main.cpp:384:9: warning: variable ‘u’ set but not used [-Wunused-but-set-variable]
  384 |     PII u = {1, 1};
      |         ^
Main.cpp:385:9: warning: unused variable ‘l’ [-Wunused-variable]
  385 |     int l, r;
      |         ^
Main.cpp:385:12: warning: unused variable ‘r’ [-Wunused-variable]
  385 |     int l, r;
      |            ^
Main.cpp: In instantiation of ‘int ALG::LISS(int, T&, int*, int&, C) [with T = std::vector<std::pair<int, int> >; C = main()::<lambda(PII&, PII&)>]’:
Main.cpp:381:19:   required from here
Main.cpp:328:31: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses]
  328 |                     int m = l + r >> 1;
      |                             ~~^~~

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