提出 #19404646

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ソースコード 拡げる

#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using vb = vector<bool>;
using vi = vector<int>;
using vll = vector<long long>;
using pll = pair<long long, long long>;

int dx[4] = {1, 0, -1, 0};
int dy[4] = {0, 1, 0, -1};

constexpr long long mod = 1000000007;

#define rep(i, n) for (ll i = 0; i < n; i++)
#define repi(i, a, b) for (ll i = a; i < b; i++)

#define all(x) (x).begin(), (x).end()

map<char, int> mp;

char f(char a, char b) {
    if (mp[a] == mp[b])
        return a;

    if (mp[a] > mp[b]) {
        swap(a, b);
    }

    if (mp[a] < mp[b]) {
        if (mp[a] * mp[b] == 0) {
            return a;
        } else {
            return b;
        }
    }
    return 0;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    mp['R'] = 0;
    mp['S'] = 1;
    mp['P'] = -1;

    int n, k;
    cin >> n >> k;

    string s;
    cin >> s;

    while (k > 0) {
        s = s + s;
        string temp;
        for (int i = 0; i < s.size(); i += 2) {
            temp += f(s[i], s[i + 1]);
        }
        s = temp;
        k--;
    }
    cout << s[0] << endl;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:57:27: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   57 |         for (int i = 0; i < s.size(); i += 2) {
      |                         ~~^~~~~~~~~~

ジャッジ結果