提出 #66566953

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ソースコード 拡げる

#define _Alignof alignof
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define gc getchar_unlocked
#define fo(i, n) for (i = 0; i < n; i++)
#define Fo(i, k, n) for (i = k; k < n ? i < n : i > n; k < n ? i += 1 : i -= 1)
#define si(x) scanf("%d", &x)
#define sl(x) scanf("%lld", &x)
#define ss(s) scanf("%s", s)
#define pi(x) printf("%d\n", x)
#define pl(x) printf("%lld\n", x)
#define ps(s) printf("%s\n", s)
#define deb(x) cout << #x << "=" << x << endl
#define deb2(x, y) cout << #x << "=" << x << "," << #y << "=" << y << endl
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define clr(x) memset(x, 0, sizeof(x))
#define sortall(x) sort(all(x))
#define tr(it, a) for (auto it = a.begin(); it != a.end(); it++)
#define PI 3.1415926535897932384626
#define MOD 1000000007
typedef pair<int, int> pii;
typedef pair<ll, ll> pl;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vpii;
typedef vector<pl> vpl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;

void solve() {
  ll n;
  cin >> n;
  string s;
  cin >> s;

  int idx = -1 ;
  for(int i = 0 ; i + 1< s.length() ; i++ ) {
    if(s[i] > s[i + 1]) {
        idx = i ;
        break ;
    }
  }
  if(idx == -1) {
    cout << s << endl;
    return;
  }
    
    int greaterdx = -1 ;
  for(int i = idx + 1 ; i < s.length() ; i++ ) {
    if(s[i] > s[idx]){
        greaterdx = i;
        break ;
    }
  }

  if(greaterdx == -1) {
    string res ;
    for(int i = 0 ; i < s.length() ;i++ ) {
        if(i != idx) res.pb(s[i]) ;
    }
    res.pb(s[idx]) ;
    cout << res << endl;
  } else{
    string res ;
    for(int i = 0 ;i < n ; i++ ) {
        if(i == greaterdx)res.pb(s[idx]) ;
        if(i != idx) res.pb(s[i]) ;
    }
    cout << res << endl;
  }


}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int tc = 1;
    // Uncomment the next line to read multiple test cases.
    cin >> tc;
    for (int t = 1; t <= tc; t++) {
        
        // cout << "Case #" << t << ": ";
        solve();
    }
    return 0;
}

提出情報

コンパイルエラー

Main.cpp: In function ‘void solve()’:
Main.cpp:44:24: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   44 |   for(int i = 0 ; i + 1< s.length() ; i++ ) {
      |                   ~~~~~^~~~~~~~~~~~
Main.cpp:56:27: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   56 |   for(int i = idx + 1 ; i < s.length() ; i++ ) {
      |                         ~~^~~~~~~~~~~~
Main.cpp:65:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   65 |     for(int i = 0 ; i < s.length() ;i++ ) {
      |                     ~~^~~~~~~~~~~~

ジャッジ結果