Submission #1104381

#	Time	Username	Problem	Language	Result	Execution time	Memory
1104381		zephyrion	Snake Escaping (JOI18_snake_escaping)	C++17	5 / 100	2052 ms	10084 KiB

snake_escaping

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

int n, q;
string s;

int solve(const string& t, int qm) {
    int sum = 0;
    for (int i = 0; i < (1 << qm); i++) {
        int c = 0;
        int idx = 0;
        for (int j = 0; j < n; j++) {
            if (t[j] == '1') {
                c += 1 << j;
            }
            if (t[j] == '?') {
                if (i & (1 << idx)) {
                    c += 1 << j;
                }
                idx++;
            }
        }
        sum += (s[c] - '0');
    }
    return sum;
}

int main() {
    cin >> n >> q;
    cin >> s;
    while (q--) {
        string t;
        cin >> t;
        reverse(t.begin(), t.end());
        cout << solve(t, count(t.begin(), t.end(), '?')) << endl;
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25