oj.uz

Submission #502897

# Submission time Handle Problem Language Result Execution time Memory
502897 2022-01-06T18:00:07 Z tengiz05 Remittance (JOI19_remittance) C++17
0 / 100
 0 ms 312 KB 
#include <bits/stdc++.h>

using i64 = long long;

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    
    int n;
    std::cin >> n;
    
    std::vector<int> a(n), b(n);
    for (int i = 0; i < n; i++) {
        std::cin >> a[i] >> b[i];
    }
    
    std::function<void()> dfs = [&]() {
        if (a == b) {
            std::cout << "Yes\n";
            std::exit(0);
        }
        int p = -1;
        for (int i = 0; i < n; i++) {
            if (a[i] - b[i] > 1) {
                p = i;
                break;
            }
        }
        if (p == -1) {
            std::cout << "No\n";
            std::exit(0);
        }
        for (int i = 0; i < n; i++) {
            int j = (p + 1) % n;
            int d = a[p] - b[p];
            if (d < 0) {
                p = j;
                continue;
            }
            d /= 2;
            a[p] -= 2 * d;
            a[j] += d;
            p = j;
        }
        dfs();
    };
    
    dfs();
    
    return 0;
}

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 304 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 308 KB Output is correct
8 Incorrect 0 ms 204 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 304 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 308 KB Output is correct
8 Incorrect 0 ms 204 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 312 KB Output is correct
5 Correct 0 ms 304 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 308 KB Output is correct
8 Incorrect 0 ms 204 KB Output isn't correct
9 Halted 0 ms 0 KB -