提出 #65420696

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ソースコード 拡げる

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

#define xx first
#define yy second
#define PB push_back
#define MP make_pair

using namespace std;

using ll = long long;
using pii = pair<int,int>;
using tii = tuple<int,int,int>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
template <typename T> using V = vector<T>;

template<class T> using uset = unordered_set<T>;
template<class T1, class T2> using umap = unordered_map<T1, T2>;

const vector<pair<int, int>> DIRS = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
constexpr int MOD = 1000000007;
mt19937_64 rnd(time(0));

template <class T>
using ordered_set =  __gnu_pbds::tree<T,__gnu_pbds::null_type,less<T>,__gnu_pbds::rb_tree_tag,__gnu_pbds::tree_order_statistics_node_update>;

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    string s;
    cin >> s;
    sort(s.begin(), s.end());
    char c = 'a';
    for ( int i=0; i<s.size(); i++ ) {
        if ( c == s[i] ) c++;
    }
    cout << c << '\n';
	return 0;
}

提出情報

コンパイルエラー

Main.cpp: In function ‘int main()’:
Main.cpp:35:21: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   35 |     for ( int i=0; i<s.size(); i++ ) {
      |                    ~^~~~~~~~~

ジャッジ結果