//author:
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define ONLINE_JUDGE
struct DSU {
vector <int> par;
DSU(int n) {
par.resize(n);
iota(par.begin(), par.end(), 0ll);
}
bool same(int a, int b) {
return get(a) == get(b);
}
inline int get(int a) {
return par[a] = (par[a] == a ? a : get(par[a]));
}
void unite(int u, int v) {
par[get(u)] = get(v);
}
};
void solve() {
int n, m, q;
cin >> n >> m >> q;
DSU dsu(n +1);
for(int i = 1; i <= m; i++) {
for(int j = 1; j <= n; j++) {
int x;
cin >> x;
dsu.unite(j, x);
}
}
for(int i = 1; i <= q; i++) {
int a, b;
cin >> a >> b;
cout << (dsu.same(a, b) ? "DA" : "NE") << "\n";
}
return;
}
signed main() {
#ifndef ONLINE_JUDGE
freopen(".in", "r", stdin);
freopen(".out", "w", stdout);
#endif
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int t = 1; //cin >> t;
while(t--)
solve();
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
70 ms |
1912 KB |
Output is correct |
| 2 |
Correct |
61 ms |
1620 KB |
Output is correct |
| 3 |
Correct |
62 ms |
1556 KB |
Output is correct |
| 4 |
Correct |
82 ms |
1864 KB |
Output is correct |
| 5 |
Correct |
75 ms |
1944 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
548 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
548 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
600 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
344 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
344 KB |
Output is correct |
| 18 |
Correct |
2 ms |
344 KB |
Output is correct |
| 19 |
Correct |
1 ms |
344 KB |
Output is correct |
| 20 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
70 ms |
1912 KB |
Output is correct |
| 2 |
Correct |
61 ms |
1620 KB |
Output is correct |
| 3 |
Correct |
62 ms |
1556 KB |
Output is correct |
| 4 |
Correct |
82 ms |
1864 KB |
Output is correct |
| 5 |
Correct |
75 ms |
1944 KB |
Output is correct |
| 6 |
Correct |
1 ms |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
548 KB |
Output is correct |
| 12 |
Correct |
1 ms |
344 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
1 ms |
344 KB |
Output is correct |
| 15 |
Correct |
1 ms |
344 KB |
Output is correct |
| 16 |
Correct |
1 ms |
344 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
600 KB |
Output is correct |
| 19 |
Correct |
1 ms |
344 KB |
Output is correct |
| 20 |
Correct |
1 ms |
344 KB |
Output is correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
344 KB |
Output is correct |
| 23 |
Correct |
2 ms |
344 KB |
Output is correct |
| 24 |
Correct |
1 ms |
344 KB |
Output is correct |
| 25 |
Correct |
1 ms |
344 KB |
Output is correct |
| 26 |
Correct |
136 ms |
1796 KB |
Output is correct |
| 27 |
Correct |
121 ms |
1872 KB |
Output is correct |
| 28 |
Correct |
104 ms |
1984 KB |
Output is correct |
| 29 |
Correct |
133 ms |
1768 KB |
Output is correct |
| 30 |
Correct |
113 ms |
1520 KB |
Output is correct |
| 31 |
Correct |
103 ms |
1464 KB |
Output is correct |
| 32 |
Correct |
133 ms |
1984 KB |
Output is correct |
| 33 |
Correct |
125 ms |
1812 KB |
Output is correct |
| 34 |
Correct |
122 ms |
1816 KB |
Output is correct |
| 35 |
Correct |
125 ms |
1872 KB |
Output is correct |
