Submission #67915738

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Source Code Expand

#include <bits/stdc++.h>
using ll = long long;

const int N = 3e5;

void solve() {
    int n, l, r;
    std::cin >> n >> l >> r;
    std::string s;
    std::cin >> s;
    s = " " + s;
    for (int i = l; i <= r; i++) {
        if (s[i] != 'o') {
            std::cout << "No";
            return;
        }
    }
    std::cout << "Yes";
}

int main() {
    std::ios::sync_with_stdio(false), std::cout.tie(nullptr), std::cin.tie(nullptr);
    int t;
    t = 1;
    while (t--) {
        solve();
    }
    return 0;
}

Submission Info

Judge Result