| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 759306 |
2023-06-16T05:33:19 Z |
boyliguanhan |
Joker (BOI20_joker) |
C++17 |
|
2000 ms |
22792 KB |
#include<bits/stdc++.h>
#pragma GCC optimize(2)
using namespace std;
#define N 200100
vector<int> adj[N];
vector<pair<int, int>> arr[N];
int color[N], ans[N], a[N], b[N], n, m, q;
int dfs(int x, int col) {
if(color[x]) {
if(col==color[x]) return 0;
else return 1;
}
color[x] = col;
for(auto i: adj[x])
if(dfs(i, 3-col))
return 1;
return 0;
}
bool check(int l, int r) {
memset(color, 0, sizeof color);
for(int i = 1; i <= n; i++)
adj[i].clear();
for(int i = 0; i < l; i++)
adj[a[i]].push_back(b[i]), adj[b[i]].push_back(a[i]);
for(int i = r+1; i < m; i++)
adj[a[i]].push_back(b[i]), adj[b[i]].push_back(a[i]);
for(int i = 0; i < n; i++)
if(!color[i])
if(dfs(i, 1))
return 1;
return 0;
}
int main() {
cin.sync_with_stdio(false);
cin.tie(nullptr);
cin >> n >> m >> q;
for(int i = 0; i < m; i++)
cin >> a[i] >> b[i];
for(int i = 0; i < q; ++i) {
int l, r;
cin >> l >> r;
arr[l-1].push_back({r-1,i});
}
for(int i = 0; i < 200; i++) {
sort(arr[i].begin(), arr[i].end());
int l = 0, r = arr[i].size();
while(l<r) {
int mid = l+r>>1;
if(check(i, arr[i][mid].first)) {
l = mid+1;
} else {
r = mid;
}
}
for(int j = 0; j < l; j++)
ans[arr[i][j].second] = 1;
for(int j = l; j < arr[i].size(); ++j)
ans[arr[i][j].second] = 0;
}
for(int i = 0; i < q; i++)
cout << (ans[i]?"YES\n":"NO\n");
}
Compilation message
Joker.cpp: In function 'int main()':
Joker.cpp:48:24: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
48 | int mid = l+r>>1;
| ~^~
Joker.cpp:57:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
57 | for(int j = l; j < arr[i].size(); ++j)
| ~~^~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 2 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 3 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 4 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 5 |
Correct |
4 ms |
10452 KB |
Output is correct |
| 6 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 7 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 8 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 9 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 10 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 11 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 12 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 13 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 14 |
Correct |
10 ms |
10420 KB |
Output is correct |
| 15 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 16 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 17 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 18 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 19 |
Correct |
8 ms |
10580 KB |
Output is correct |
| 20 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10528 KB |
Output is correct |
| 22 |
Correct |
7 ms |
10512 KB |
Output is correct |
| 23 |
Correct |
9 ms |
10472 KB |
Output is correct |
| 24 |
Correct |
9 ms |
10452 KB |
Output is correct |
| 25 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 26 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 27 |
Correct |
7 ms |
10464 KB |
Output is correct |
| 28 |
Correct |
7 ms |
10536 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 2 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 3 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 4 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 5 |
Correct |
4 ms |
10452 KB |
Output is correct |
| 6 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 7 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 8 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 9 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 10 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 11 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 12 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 13 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 14 |
Correct |
10 ms |
10420 KB |
Output is correct |
| 15 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 16 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 17 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 18 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 19 |
Correct |
8 ms |
10580 KB |
Output is correct |
| 20 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10528 KB |
Output is correct |
| 22 |
Correct |
7 ms |
10512 KB |
Output is correct |
| 23 |
Correct |
9 ms |
10472 KB |
Output is correct |
| 24 |
Correct |
9 ms |
10452 KB |
Output is correct |
| 25 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 26 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 27 |
Correct |
7 ms |
10464 KB |
Output is correct |
| 28 |
Correct |
7 ms |
10536 KB |
Output is correct |
| 29 |
Correct |
17 ms |
10608 KB |
Output is correct |
| 30 |
Incorrect |
14 ms |
10580 KB |
Output isn't correct |
| 31 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 2 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 3 |
Correct |
113 ms |
21316 KB |
Output is correct |
| 4 |
Correct |
265 ms |
22792 KB |
Output is correct |
| 5 |
Correct |
100 ms |
16556 KB |
Output is correct |
| 6 |
Correct |
123 ms |
19008 KB |
Output is correct |
| 7 |
Correct |
128 ms |
18320 KB |
Output is correct |
| 8 |
Correct |
121 ms |
20160 KB |
Output is correct |
| 9 |
Correct |
143 ms |
20612 KB |
Output is correct |
| 10 |
Correct |
205 ms |
20804 KB |
Output is correct |
| 11 |
Correct |
132 ms |
18136 KB |
Output is correct |
| 12 |
Correct |
188 ms |
19172 KB |
Output is correct |
| 13 |
Correct |
98 ms |
17632 KB |
Output is correct |
| 14 |
Correct |
135 ms |
18924 KB |
Output is correct |
| 15 |
Correct |
148 ms |
19312 KB |
Output is correct |
| 16 |
Correct |
175 ms |
19408 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 2 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 3 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 4 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 5 |
Correct |
4 ms |
10452 KB |
Output is correct |
| 6 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 7 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 8 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 9 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 10 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 11 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 12 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 13 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 14 |
Correct |
10 ms |
10420 KB |
Output is correct |
| 15 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 16 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 17 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 18 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 19 |
Correct |
8 ms |
10580 KB |
Output is correct |
| 20 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10528 KB |
Output is correct |
| 22 |
Correct |
7 ms |
10512 KB |
Output is correct |
| 23 |
Correct |
9 ms |
10472 KB |
Output is correct |
| 24 |
Correct |
9 ms |
10452 KB |
Output is correct |
| 25 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 26 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 27 |
Correct |
7 ms |
10464 KB |
Output is correct |
| 28 |
Correct |
7 ms |
10536 KB |
Output is correct |
| 29 |
Correct |
113 ms |
21316 KB |
Output is correct |
| 30 |
Correct |
265 ms |
22792 KB |
Output is correct |
| 31 |
Correct |
100 ms |
16556 KB |
Output is correct |
| 32 |
Correct |
123 ms |
19008 KB |
Output is correct |
| 33 |
Correct |
128 ms |
18320 KB |
Output is correct |
| 34 |
Correct |
121 ms |
20160 KB |
Output is correct |
| 35 |
Correct |
143 ms |
20612 KB |
Output is correct |
| 36 |
Correct |
205 ms |
20804 KB |
Output is correct |
| 37 |
Correct |
132 ms |
18136 KB |
Output is correct |
| 38 |
Correct |
188 ms |
19172 KB |
Output is correct |
| 39 |
Correct |
98 ms |
17632 KB |
Output is correct |
| 40 |
Correct |
135 ms |
18924 KB |
Output is correct |
| 41 |
Correct |
148 ms |
19312 KB |
Output is correct |
| 42 |
Correct |
175 ms |
19408 KB |
Output is correct |
| 43 |
Execution timed out |
2071 ms |
22472 KB |
Time limit exceeded |
| 44 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 2 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 3 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 4 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 5 |
Correct |
4 ms |
10452 KB |
Output is correct |
| 6 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 7 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 8 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 9 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 10 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 11 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 12 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 13 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 14 |
Correct |
10 ms |
10420 KB |
Output is correct |
| 15 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 16 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 17 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 18 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 19 |
Correct |
8 ms |
10580 KB |
Output is correct |
| 20 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10528 KB |
Output is correct |
| 22 |
Correct |
7 ms |
10512 KB |
Output is correct |
| 23 |
Correct |
9 ms |
10472 KB |
Output is correct |
| 24 |
Correct |
9 ms |
10452 KB |
Output is correct |
| 25 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 26 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 27 |
Correct |
7 ms |
10464 KB |
Output is correct |
| 28 |
Correct |
7 ms |
10536 KB |
Output is correct |
| 29 |
Correct |
17 ms |
10608 KB |
Output is correct |
| 30 |
Incorrect |
14 ms |
10580 KB |
Output isn't correct |
| 31 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 2 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 3 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 4 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 5 |
Correct |
4 ms |
10452 KB |
Output is correct |
| 6 |
Correct |
5 ms |
10452 KB |
Output is correct |
| 7 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 8 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 9 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 10 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 11 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 12 |
Correct |
8 ms |
10452 KB |
Output is correct |
| 13 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 14 |
Correct |
10 ms |
10420 KB |
Output is correct |
| 15 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 16 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 17 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 18 |
Correct |
7 ms |
10528 KB |
Output is correct |
| 19 |
Correct |
8 ms |
10580 KB |
Output is correct |
| 20 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10528 KB |
Output is correct |
| 22 |
Correct |
7 ms |
10512 KB |
Output is correct |
| 23 |
Correct |
9 ms |
10472 KB |
Output is correct |
| 24 |
Correct |
9 ms |
10452 KB |
Output is correct |
| 25 |
Correct |
7 ms |
10532 KB |
Output is correct |
| 26 |
Correct |
7 ms |
10452 KB |
Output is correct |
| 27 |
Correct |
7 ms |
10464 KB |
Output is correct |
| 28 |
Correct |
7 ms |
10536 KB |
Output is correct |
| 29 |
Correct |
17 ms |
10608 KB |
Output is correct |
| 30 |
Incorrect |
14 ms |
10580 KB |
Output isn't correct |
| 31 |
Halted |
0 ms |
0 KB |
- |
