Submission #1136333

#	Time	Username	Problem	Language	Result	Execution time	Memory
1136333		lopkus	Topovi (COCI15_topovi)	C++20	30 / 120	2097 ms	131072 KiB

topovi

#include <bits/stdc++.h>

#define int long long

using namespace std;

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, k, q;
    cin >> n >> k >> q;
    int u1[n + 1] = {0};
    int u2[n + 1] = {0};
    map<pair<int,int>, int> M;
    for(int i = 1; i <= k; i++) {
        int r, c, x;
        cin >> r >> c >> x;
        u1[r] ^= x;
        u2[c] ^= x;
        M[{r, c}] = x;
    }
    while(q--) {
        int r1, c1, r2, c2;
        cin >> r1 >> c1 >> r2 >> c2;
        int value = M[{r1, c1}];
        M[{r1, c1}] = 0;
        u1[r1] ^= value;
        u2[c1] ^= value;
        u1[r2] ^= value;
        u2[c2] ^= value;
        M[{r2, c2}] = value;
        int ans = 0;
        for(int i = 1; i <= n; i++) {
            for(int j = 1; j <= n; j++) {
                if((u1[i] ^ u2[j]) > 0) {
                    ans += 1;
                }
            }
        }
        cout << ans << "\n";
    }
}

• Subtask 1: 30 / 120