#include <stdio.h>
#include <string.h>
#define N 200000
#define M 200000
unsigned int X = 12345;
int rand_() {
return (X *= 3) >> 1;
}
int ii[M], jj[M], ww[M];
void sort(int *hh, int l, int r) {
while (l < r) {
int i = l, j = l, k = r, h = hh[l + rand_() % (r - l)], tmp;
while (j < k)
if (ww[hh[j]] == ww[h])
j++;
else if (ww[hh[j]] < ww[h]) {
tmp = hh[i], hh[i] = hh[j], hh[j] = tmp;
i++, j++;
} else {
k--;
tmp = hh[j], hh[j] = hh[k], hh[k] = tmp;
}
sort(hh, l, i);
l = k;
}
}
int ds[N], ww_[N];
int find(int i) {
return ds[i] < 0 ? i : find(ds[i]);
}
void join(int i, int j, int w) {
i = find(i);
j = find(j);
if (i == j)
return;
if (ds[i] > ds[j])
ds[i] = j, ww_[i] = w;
else {
if (ds[i] == ds[j])
ds[i]--;
ds[j] = i, ww_[j] = w;
}
}
int query(int i, int j) {
int w = 0;
while (i != j && i >= 0 && j >= 0)
if (ww_[i] < ww_[j])
w = ww_[i], i = ds[i];
else
w = ww_[j], j = ds[j];
return w;
}
int main() {
static int hh[M];
int n, m, q, h, h_, i, j, w;
scanf("%d%d%d", &n, &m, &q);
for (h = 0; h < m; h++)
scanf("%d%d%d", &ii[h], &jj[h], &ww[h]), ii[h]--, jj[h]--;
for (h = 0; h < m; h++)
hh[h] = h;
sort(hh, 0, m);
memset(ds, -1, n * sizeof *ds), memset(ww_, 0x3f, n * sizeof *ww_);
for (h = 0; h < m; h++) {
h_ = hh[h];
join(ii[h_], jj[h_], ww[h_]);
}
while (q--) {
scanf("%d%d%d", &i, &j, &w), i--, j--;
printf(query(i, j) <= w ? "TAIP\n" : "NE\n");
}
return 0;
}
Compilation message
sunkvezimiai.c: In function 'main':
sunkvezimiai.c:69:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
69 | scanf("%d%d%d", &n, &m, &q);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
sunkvezimiai.c:71:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
71 | scanf("%d%d%d", &ii[h], &jj[h], &ww[h]), ii[h]--, jj[h]--;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sunkvezimiai.c:81:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
81 | scanf("%d%d%d", &i, &j, &w), i--, j--;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
56 ms |
5628 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 6 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
5 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
5 ms |
2740 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2484 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2476 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2484 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2476 KB |
Output is correct |
| 15 |
Correct |
56 ms |
5628 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
5 ms |
2740 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2484 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2476 KB |
Output is correct |
| 26 |
Correct |
56 ms |
5628 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
5 ms |
2740 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2488 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2484 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2476 KB |
Output is correct |
| 26 |
Correct |
56 ms |
5628 KB |
Output is correct |
| 27 |
Correct |
136 ms |
12880 KB |
Output is correct |
| 28 |
Correct |
8 ms |
2908 KB |
Output is correct |
| 29 |
Correct |
8 ms |
3108 KB |
Output is correct |
| 30 |
Correct |
13 ms |
3484 KB |
Output is correct |
| 31 |
Correct |
12 ms |
3164 KB |
Output is correct |
| 32 |
Correct |
7 ms |
2828 KB |
Output is correct |
| 33 |
Correct |
98 ms |
10824 KB |
Output is correct |
| 34 |
Correct |
11 ms |
3160 KB |
Output is correct |
| 35 |
Correct |
99 ms |
12432 KB |
Output is correct |
