提出 #1666463

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ソースコード 拡げる

#include <bits/stdc++.h>
#define FOR(i,k,n) for (int (i)=(k); (i)<(n); ++(i))
#define RFOR(i,k,n) for (int (i)=(n)-1; (i)>=(k); --(i))
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define pb push_back
#define mp make_pair
#define fst first
#define snd second
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define debug(x) cerr << #x <<": "<<x<<endl
#define debug2(x,y) cerr << #x <<": "<< x <<", "<< #y <<": "<< (y) << endl
#define answer(x) cout << x <<endl
#define answer_fixed(x, p) cout << fixed << setprecision(p) << x << endl
using namespace std;
typedef vector<int> VI;

int main() {
  int N, M;
  cin >> N;
  VI D(N);
  REP(i, N) { scanf("%d", &D[i]); }
  cin >> M;
  VI T(M);
  REP(i, M) { scanf("%d", &T[i]); }
  sort(all(D));
  VI used(N, 0);
  REP(i, M) {
    auto itr = lower_bound(all(D), T[i]);
    int j = distance(D.begin(), itr);
    if(*itr != T[i]) {
      cout << "NO" << endl;
      return 0;
    }
    else if(used[j]) {
      while(*(itr++) == T[i] && used[j++]) {}
      if(*(--itr) != T[i]) {
        cout << "NO" << endl;
        return 0;
      }
      else { used[--j] = 1; }
    }
    else { used[j] = 1; }
  }
  cout << "YES" << endl;
  return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:23:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   REP(i, N) { scanf("%d", &D[i]); }
                                 ^
./Main.cpp:26:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   REP(i, M) { scanf("%d", &T[i]); }
                                 ^

ジャッジ結果