| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 677215 |
2023-01-02T15:01:07 Z |
ajab_01 |
Tug of War (BOI15_tug) |
C++17 |
|
2516 ms |
4388 KB |
#include<bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;
vector<int> g[N];
int l[N] , r[N] , p[N] , cnt[2] , n , k;
bool mark[N] , ch , flg = 1;
void dfs(int ver , int sit){
mark[ver] = 1;
cnt[sit]++;
for(int i : g[ver]){
if(mark[i]) continue;
dfs(i , sit ^ 1);
}
}
bool check(int mask){
bool vis[N];
memset(vis , 0 , sizeof(vis));
int sum1 = 0 , sum2 = 0;
for(int i = 0 ; i < 2 * n ; i++){
if(mask & (1 << i)){
if(vis[r[i]])
return 0;
vis[r[i]] = 1;
sum1 += p[i];
}
else{
if(vis[l[i]])
return 0;
vis[l[i]] = 1;
sum2 += p[i];
}
}
return abs(sum1 - sum2) <= k;
}
int main(){
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
cin >> n >> k;
if(n <= 10){
for(int i = 0 ; i < 2 * n ; i++){
cin >> l[i] >> r[i] >> p[i];
r[i] += n;
}
for(int mask = 0 ; mask < (1 << 2 * n) ; mask++)
if(check(mask))
ch = 1;
if(ch)
cout << "YES" << '\n';
else
cout << "NO" << '\n';
return 0;
}
for(int i = 1 ; i <= 2 * n ; i++){
cin >> l[i] >> r[i] >> p[i];
g[i].push_back(l[i] + 2 * n);
g[l[i] + 2 * n].push_back(i);
g[i].push_back(r[i] + 3 * n);
g[r[i] + 3 * n].push_back(i);
}
for(int i = 1 ; i <= 4 * n ; i++){
if(!mark[i]){
cnt[0] = cnt[1] = 0;
dfs(i , (i > 2 * n ? 1 : 0));
if(cnt[0] != cnt[1]) flg = 0;
}
}
if(flg)
cout << "YES" << '\n';
else
cout << "NO" << '\n';
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2430 ms |
2772 KB |
Output is correct |
| 2 |
Correct |
2437 ms |
2772 KB |
Output is correct |
| 3 |
Correct |
2469 ms |
2772 KB |
Output is correct |
| 4 |
Correct |
2516 ms |
2772 KB |
Output is correct |
| 5 |
Correct |
2516 ms |
2772 KB |
Output is correct |
| 6 |
Correct |
2453 ms |
2772 KB |
Output is correct |
| 7 |
Correct |
2472 ms |
2772 KB |
Output is correct |
| 8 |
Correct |
2432 ms |
2772 KB |
Output is correct |
| 9 |
Correct |
2452 ms |
2772 KB |
Output is correct |
| 10 |
Correct |
2449 ms |
2756 KB |
Output is correct |
| 11 |
Correct |
2418 ms |
2772 KB |
Output is correct |
| 12 |
Correct |
2405 ms |
2772 KB |
Output is correct |
| 13 |
Correct |
2442 ms |
2772 KB |
Output is correct |
| 14 |
Correct |
2421 ms |
2772 KB |
Output is correct |
| 15 |
Correct |
2464 ms |
2760 KB |
Output is correct |
| 16 |
Correct |
2414 ms |
2772 KB |
Output is correct |
| 17 |
Correct |
2458 ms |
2772 KB |
Output is correct |
| 18 |
Correct |
2427 ms |
2772 KB |
Output is correct |
| 19 |
Correct |
2408 ms |
2772 KB |
Output is correct |
| 20 |
Correct |
2417 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
2420 ms |
2892 KB |
Output is correct |
| 22 |
Correct |
2372 ms |
2772 KB |
Output is correct |
| 23 |
Correct |
2424 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
2420 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
2436 ms |
2772 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2430 ms |
2772 KB |
Output is correct |
| 2 |
Correct |
2437 ms |
2772 KB |
Output is correct |
| 3 |
Correct |
2469 ms |
2772 KB |
Output is correct |
| 4 |
Correct |
2516 ms |
2772 KB |
Output is correct |
| 5 |
Correct |
2516 ms |
2772 KB |
Output is correct |
| 6 |
Correct |
2453 ms |
2772 KB |
Output is correct |
| 7 |
Correct |
2472 ms |
2772 KB |
Output is correct |
| 8 |
Correct |
2432 ms |
2772 KB |
Output is correct |
| 9 |
Correct |
2452 ms |
2772 KB |
Output is correct |
| 10 |
Correct |
2449 ms |
2756 KB |
Output is correct |
| 11 |
Correct |
2418 ms |
2772 KB |
Output is correct |
| 12 |
Correct |
2405 ms |
2772 KB |
Output is correct |
| 13 |
Correct |
2442 ms |
2772 KB |
Output is correct |
| 14 |
Correct |
2421 ms |
2772 KB |
Output is correct |
| 15 |
Correct |
2464 ms |
2760 KB |
Output is correct |
| 16 |
Correct |
2414 ms |
2772 KB |
Output is correct |
| 17 |
Correct |
2458 ms |
2772 KB |
Output is correct |
| 18 |
Correct |
2427 ms |
2772 KB |
Output is correct |
| 19 |
Correct |
2408 ms |
2772 KB |
Output is correct |
| 20 |
Correct |
2417 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
2420 ms |
2892 KB |
Output is correct |
| 22 |
Correct |
2372 ms |
2772 KB |
Output is correct |
| 23 |
Correct |
2424 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
2420 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
2436 ms |
2772 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2900 KB |
Output is correct |
| 27 |
Incorrect |
3 ms |
3028 KB |
Output isn't correct |
| 28 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
4172 KB |
Output is correct |
| 2 |
Correct |
11 ms |
4168 KB |
Output is correct |
| 3 |
Correct |
10 ms |
4140 KB |
Output is correct |
| 4 |
Correct |
10 ms |
4200 KB |
Output is correct |
| 5 |
Correct |
9 ms |
4208 KB |
Output is correct |
| 6 |
Correct |
11 ms |
4180 KB |
Output is correct |
| 7 |
Correct |
10 ms |
4180 KB |
Output is correct |
| 8 |
Correct |
11 ms |
4180 KB |
Output is correct |
| 9 |
Correct |
11 ms |
4192 KB |
Output is correct |
| 10 |
Correct |
13 ms |
4180 KB |
Output is correct |
| 11 |
Correct |
10 ms |
4180 KB |
Output is correct |
| 12 |
Correct |
15 ms |
4160 KB |
Output is correct |
| 13 |
Correct |
9 ms |
4096 KB |
Output is correct |
| 14 |
Correct |
10 ms |
4120 KB |
Output is correct |
| 15 |
Correct |
12 ms |
4180 KB |
Output is correct |
| 16 |
Correct |
10 ms |
4180 KB |
Output is correct |
| 17 |
Correct |
10 ms |
4196 KB |
Output is correct |
| 18 |
Correct |
10 ms |
4092 KB |
Output is correct |
| 19 |
Correct |
10 ms |
4180 KB |
Output is correct |
| 20 |
Correct |
9 ms |
4180 KB |
Output is correct |
| 21 |
Correct |
10 ms |
4388 KB |
Output is correct |
| 22 |
Correct |
10 ms |
4112 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2430 ms |
2772 KB |
Output is correct |
| 2 |
Correct |
2437 ms |
2772 KB |
Output is correct |
| 3 |
Correct |
2469 ms |
2772 KB |
Output is correct |
| 4 |
Correct |
2516 ms |
2772 KB |
Output is correct |
| 5 |
Correct |
2516 ms |
2772 KB |
Output is correct |
| 6 |
Correct |
2453 ms |
2772 KB |
Output is correct |
| 7 |
Correct |
2472 ms |
2772 KB |
Output is correct |
| 8 |
Correct |
2432 ms |
2772 KB |
Output is correct |
| 9 |
Correct |
2452 ms |
2772 KB |
Output is correct |
| 10 |
Correct |
2449 ms |
2756 KB |
Output is correct |
| 11 |
Correct |
2418 ms |
2772 KB |
Output is correct |
| 12 |
Correct |
2405 ms |
2772 KB |
Output is correct |
| 13 |
Correct |
2442 ms |
2772 KB |
Output is correct |
| 14 |
Correct |
2421 ms |
2772 KB |
Output is correct |
| 15 |
Correct |
2464 ms |
2760 KB |
Output is correct |
| 16 |
Correct |
2414 ms |
2772 KB |
Output is correct |
| 17 |
Correct |
2458 ms |
2772 KB |
Output is correct |
| 18 |
Correct |
2427 ms |
2772 KB |
Output is correct |
| 19 |
Correct |
2408 ms |
2772 KB |
Output is correct |
| 20 |
Correct |
2417 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
2420 ms |
2892 KB |
Output is correct |
| 22 |
Correct |
2372 ms |
2772 KB |
Output is correct |
| 23 |
Correct |
2424 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
2420 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
2436 ms |
2772 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2900 KB |
Output is correct |
| 27 |
Incorrect |
3 ms |
3028 KB |
Output isn't correct |
| 28 |
Halted |
0 ms |
0 KB |
- |
