#include<bits/stdc++.h>
using namespace std;
#define N 200100
vector<int> adj[N];
int color[N];
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;
}
int a[N], b[N];
int main() {
cin.sync_with_stdio(false);
cin.tie(nullptr);
int n, m, q;
cin >> n >> m >> q;
for(int i = 0; i < m; i++)
cin >> a[i] >> b[i];
while(q--) {
int l, r;
cin >> l >> r;
memset(color, 0, sizeof color);
for(int i = 1; i <= n; i++)
adj[i].clear();
for(int i = 0; i < l-1; i++)
adj[a[i]].push_back(b[i]), adj[b[i]].push_back(a[i]);
for(int i = r; 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)) {
cout << "YES\n";
break;
}
}
if(i==n-1) cout << "NO\n";
}
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5716 KB |
Output is correct |
2 |
Correct |
3 ms |
5716 KB |
Output is correct |
3 |
Correct |
3 ms |
5792 KB |
Output is correct |
4 |
Correct |
3 ms |
5716 KB |
Output is correct |
5 |
Correct |
3 ms |
5796 KB |
Output is correct |
6 |
Correct |
3 ms |
5796 KB |
Output is correct |
7 |
Correct |
5 ms |
5792 KB |
Output is correct |
8 |
Correct |
5 ms |
5716 KB |
Output is correct |
9 |
Correct |
5 ms |
5716 KB |
Output is correct |
10 |
Correct |
6 ms |
5788 KB |
Output is correct |
11 |
Correct |
5 ms |
5716 KB |
Output is correct |
12 |
Correct |
6 ms |
5800 KB |
Output is correct |
13 |
Correct |
6 ms |
5800 KB |
Output is correct |
14 |
Correct |
8 ms |
5848 KB |
Output is correct |
15 |
Correct |
6 ms |
5716 KB |
Output is correct |
16 |
Correct |
6 ms |
5716 KB |
Output is correct |
17 |
Correct |
5 ms |
5716 KB |
Output is correct |
18 |
Correct |
5 ms |
5716 KB |
Output is correct |
19 |
Correct |
5 ms |
5716 KB |
Output is correct |
20 |
Correct |
6 ms |
5716 KB |
Output is correct |
21 |
Correct |
6 ms |
5716 KB |
Output is correct |
22 |
Correct |
6 ms |
5780 KB |
Output is correct |
23 |
Correct |
6 ms |
5796 KB |
Output is correct |
24 |
Correct |
5 ms |
5716 KB |
Output is correct |
25 |
Correct |
5 ms |
5720 KB |
Output is correct |
26 |
Correct |
5 ms |
5792 KB |
Output is correct |
27 |
Correct |
6 ms |
5716 KB |
Output is correct |
28 |
Correct |
6 ms |
5800 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5716 KB |
Output is correct |
2 |
Correct |
3 ms |
5716 KB |
Output is correct |
3 |
Correct |
3 ms |
5792 KB |
Output is correct |
4 |
Correct |
3 ms |
5716 KB |
Output is correct |
5 |
Correct |
3 ms |
5796 KB |
Output is correct |
6 |
Correct |
3 ms |
5796 KB |
Output is correct |
7 |
Correct |
5 ms |
5792 KB |
Output is correct |
8 |
Correct |
5 ms |
5716 KB |
Output is correct |
9 |
Correct |
5 ms |
5716 KB |
Output is correct |
10 |
Correct |
6 ms |
5788 KB |
Output is correct |
11 |
Correct |
5 ms |
5716 KB |
Output is correct |
12 |
Correct |
6 ms |
5800 KB |
Output is correct |
13 |
Correct |
6 ms |
5800 KB |
Output is correct |
14 |
Correct |
8 ms |
5848 KB |
Output is correct |
15 |
Correct |
6 ms |
5716 KB |
Output is correct |
16 |
Correct |
6 ms |
5716 KB |
Output is correct |
17 |
Correct |
5 ms |
5716 KB |
Output is correct |
18 |
Correct |
5 ms |
5716 KB |
Output is correct |
19 |
Correct |
5 ms |
5716 KB |
Output is correct |
20 |
Correct |
6 ms |
5716 KB |
Output is correct |
21 |
Correct |
6 ms |
5716 KB |
Output is correct |
22 |
Correct |
6 ms |
5780 KB |
Output is correct |
23 |
Correct |
6 ms |
5796 KB |
Output is correct |
24 |
Correct |
5 ms |
5716 KB |
Output is correct |
25 |
Correct |
5 ms |
5720 KB |
Output is correct |
26 |
Correct |
5 ms |
5792 KB |
Output is correct |
27 |
Correct |
6 ms |
5716 KB |
Output is correct |
28 |
Correct |
6 ms |
5800 KB |
Output is correct |
29 |
Correct |
71 ms |
5804 KB |
Output is correct |
30 |
Correct |
75 ms |
5916 KB |
Output is correct |
31 |
Correct |
63 ms |
5924 KB |
Output is correct |
32 |
Correct |
46 ms |
5900 KB |
Output is correct |
33 |
Correct |
43 ms |
5844 KB |
Output is correct |
34 |
Correct |
65 ms |
5912 KB |
Output is correct |
35 |
Correct |
84 ms |
5912 KB |
Output is correct |
36 |
Correct |
48 ms |
5844 KB |
Output is correct |
37 |
Correct |
83 ms |
5936 KB |
Output is correct |
38 |
Correct |
80 ms |
5844 KB |
Output is correct |
39 |
Correct |
73 ms |
5916 KB |
Output is correct |
40 |
Correct |
52 ms |
5920 KB |
Output is correct |
41 |
Correct |
49 ms |
5916 KB |
Output is correct |
42 |
Correct |
49 ms |
5900 KB |
Output is correct |
43 |
Correct |
42 ms |
5904 KB |
Output is correct |
44 |
Correct |
43 ms |
5844 KB |
Output is correct |
45 |
Correct |
47 ms |
5920 KB |
Output is correct |
46 |
Correct |
52 ms |
5912 KB |
Output is correct |
47 |
Correct |
49 ms |
5908 KB |
Output is correct |
48 |
Correct |
52 ms |
5908 KB |
Output is correct |
49 |
Correct |
59 ms |
5908 KB |
Output is correct |
50 |
Correct |
71 ms |
5972 KB |
Output is correct |
51 |
Correct |
46 ms |
5908 KB |
Output is correct |
52 |
Correct |
57 ms |
5900 KB |
Output is correct |
53 |
Correct |
62 ms |
5908 KB |
Output is correct |
54 |
Correct |
72 ms |
5924 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5716 KB |
Output is correct |
2 |
Correct |
3 ms |
5716 KB |
Output is correct |
3 |
Execution timed out |
2043 ms |
16240 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5716 KB |
Output is correct |
2 |
Correct |
3 ms |
5716 KB |
Output is correct |
3 |
Correct |
3 ms |
5792 KB |
Output is correct |
4 |
Correct |
3 ms |
5716 KB |
Output is correct |
5 |
Correct |
3 ms |
5796 KB |
Output is correct |
6 |
Correct |
3 ms |
5796 KB |
Output is correct |
7 |
Correct |
5 ms |
5792 KB |
Output is correct |
8 |
Correct |
5 ms |
5716 KB |
Output is correct |
9 |
Correct |
5 ms |
5716 KB |
Output is correct |
10 |
Correct |
6 ms |
5788 KB |
Output is correct |
11 |
Correct |
5 ms |
5716 KB |
Output is correct |
12 |
Correct |
6 ms |
5800 KB |
Output is correct |
13 |
Correct |
6 ms |
5800 KB |
Output is correct |
14 |
Correct |
8 ms |
5848 KB |
Output is correct |
15 |
Correct |
6 ms |
5716 KB |
Output is correct |
16 |
Correct |
6 ms |
5716 KB |
Output is correct |
17 |
Correct |
5 ms |
5716 KB |
Output is correct |
18 |
Correct |
5 ms |
5716 KB |
Output is correct |
19 |
Correct |
5 ms |
5716 KB |
Output is correct |
20 |
Correct |
6 ms |
5716 KB |
Output is correct |
21 |
Correct |
6 ms |
5716 KB |
Output is correct |
22 |
Correct |
6 ms |
5780 KB |
Output is correct |
23 |
Correct |
6 ms |
5796 KB |
Output is correct |
24 |
Correct |
5 ms |
5716 KB |
Output is correct |
25 |
Correct |
5 ms |
5720 KB |
Output is correct |
26 |
Correct |
5 ms |
5792 KB |
Output is correct |
27 |
Correct |
6 ms |
5716 KB |
Output is correct |
28 |
Correct |
6 ms |
5800 KB |
Output is correct |
29 |
Execution timed out |
2043 ms |
16240 KB |
Time limit exceeded |
30 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5716 KB |
Output is correct |
2 |
Correct |
3 ms |
5716 KB |
Output is correct |
3 |
Correct |
3 ms |
5792 KB |
Output is correct |
4 |
Correct |
3 ms |
5716 KB |
Output is correct |
5 |
Correct |
3 ms |
5796 KB |
Output is correct |
6 |
Correct |
3 ms |
5796 KB |
Output is correct |
7 |
Correct |
5 ms |
5792 KB |
Output is correct |
8 |
Correct |
5 ms |
5716 KB |
Output is correct |
9 |
Correct |
5 ms |
5716 KB |
Output is correct |
10 |
Correct |
6 ms |
5788 KB |
Output is correct |
11 |
Correct |
5 ms |
5716 KB |
Output is correct |
12 |
Correct |
6 ms |
5800 KB |
Output is correct |
13 |
Correct |
6 ms |
5800 KB |
Output is correct |
14 |
Correct |
8 ms |
5848 KB |
Output is correct |
15 |
Correct |
6 ms |
5716 KB |
Output is correct |
16 |
Correct |
6 ms |
5716 KB |
Output is correct |
17 |
Correct |
5 ms |
5716 KB |
Output is correct |
18 |
Correct |
5 ms |
5716 KB |
Output is correct |
19 |
Correct |
5 ms |
5716 KB |
Output is correct |
20 |
Correct |
6 ms |
5716 KB |
Output is correct |
21 |
Correct |
6 ms |
5716 KB |
Output is correct |
22 |
Correct |
6 ms |
5780 KB |
Output is correct |
23 |
Correct |
6 ms |
5796 KB |
Output is correct |
24 |
Correct |
5 ms |
5716 KB |
Output is correct |
25 |
Correct |
5 ms |
5720 KB |
Output is correct |
26 |
Correct |
5 ms |
5792 KB |
Output is correct |
27 |
Correct |
6 ms |
5716 KB |
Output is correct |
28 |
Correct |
6 ms |
5800 KB |
Output is correct |
29 |
Correct |
71 ms |
5804 KB |
Output is correct |
30 |
Correct |
75 ms |
5916 KB |
Output is correct |
31 |
Correct |
63 ms |
5924 KB |
Output is correct |
32 |
Correct |
46 ms |
5900 KB |
Output is correct |
33 |
Correct |
43 ms |
5844 KB |
Output is correct |
34 |
Correct |
65 ms |
5912 KB |
Output is correct |
35 |
Correct |
84 ms |
5912 KB |
Output is correct |
36 |
Correct |
48 ms |
5844 KB |
Output is correct |
37 |
Correct |
83 ms |
5936 KB |
Output is correct |
38 |
Correct |
80 ms |
5844 KB |
Output is correct |
39 |
Correct |
73 ms |
5916 KB |
Output is correct |
40 |
Correct |
52 ms |
5920 KB |
Output is correct |
41 |
Correct |
49 ms |
5916 KB |
Output is correct |
42 |
Correct |
49 ms |
5900 KB |
Output is correct |
43 |
Correct |
42 ms |
5904 KB |
Output is correct |
44 |
Correct |
43 ms |
5844 KB |
Output is correct |
45 |
Correct |
47 ms |
5920 KB |
Output is correct |
46 |
Correct |
52 ms |
5912 KB |
Output is correct |
47 |
Correct |
49 ms |
5908 KB |
Output is correct |
48 |
Correct |
52 ms |
5908 KB |
Output is correct |
49 |
Correct |
59 ms |
5908 KB |
Output is correct |
50 |
Correct |
71 ms |
5972 KB |
Output is correct |
51 |
Correct |
46 ms |
5908 KB |
Output is correct |
52 |
Correct |
57 ms |
5900 KB |
Output is correct |
53 |
Correct |
62 ms |
5908 KB |
Output is correct |
54 |
Correct |
72 ms |
5924 KB |
Output is correct |
55 |
Execution timed out |
2056 ms |
17152 KB |
Time limit exceeded |
56 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
5716 KB |
Output is correct |
2 |
Correct |
3 ms |
5716 KB |
Output is correct |
3 |
Correct |
3 ms |
5792 KB |
Output is correct |
4 |
Correct |
3 ms |
5716 KB |
Output is correct |
5 |
Correct |
3 ms |
5796 KB |
Output is correct |
6 |
Correct |
3 ms |
5796 KB |
Output is correct |
7 |
Correct |
5 ms |
5792 KB |
Output is correct |
8 |
Correct |
5 ms |
5716 KB |
Output is correct |
9 |
Correct |
5 ms |
5716 KB |
Output is correct |
10 |
Correct |
6 ms |
5788 KB |
Output is correct |
11 |
Correct |
5 ms |
5716 KB |
Output is correct |
12 |
Correct |
6 ms |
5800 KB |
Output is correct |
13 |
Correct |
6 ms |
5800 KB |
Output is correct |
14 |
Correct |
8 ms |
5848 KB |
Output is correct |
15 |
Correct |
6 ms |
5716 KB |
Output is correct |
16 |
Correct |
6 ms |
5716 KB |
Output is correct |
17 |
Correct |
5 ms |
5716 KB |
Output is correct |
18 |
Correct |
5 ms |
5716 KB |
Output is correct |
19 |
Correct |
5 ms |
5716 KB |
Output is correct |
20 |
Correct |
6 ms |
5716 KB |
Output is correct |
21 |
Correct |
6 ms |
5716 KB |
Output is correct |
22 |
Correct |
6 ms |
5780 KB |
Output is correct |
23 |
Correct |
6 ms |
5796 KB |
Output is correct |
24 |
Correct |
5 ms |
5716 KB |
Output is correct |
25 |
Correct |
5 ms |
5720 KB |
Output is correct |
26 |
Correct |
5 ms |
5792 KB |
Output is correct |
27 |
Correct |
6 ms |
5716 KB |
Output is correct |
28 |
Correct |
6 ms |
5800 KB |
Output is correct |
29 |
Correct |
71 ms |
5804 KB |
Output is correct |
30 |
Correct |
75 ms |
5916 KB |
Output is correct |
31 |
Correct |
63 ms |
5924 KB |
Output is correct |
32 |
Correct |
46 ms |
5900 KB |
Output is correct |
33 |
Correct |
43 ms |
5844 KB |
Output is correct |
34 |
Correct |
65 ms |
5912 KB |
Output is correct |
35 |
Correct |
84 ms |
5912 KB |
Output is correct |
36 |
Correct |
48 ms |
5844 KB |
Output is correct |
37 |
Correct |
83 ms |
5936 KB |
Output is correct |
38 |
Correct |
80 ms |
5844 KB |
Output is correct |
39 |
Correct |
73 ms |
5916 KB |
Output is correct |
40 |
Correct |
52 ms |
5920 KB |
Output is correct |
41 |
Correct |
49 ms |
5916 KB |
Output is correct |
42 |
Correct |
49 ms |
5900 KB |
Output is correct |
43 |
Correct |
42 ms |
5904 KB |
Output is correct |
44 |
Correct |
43 ms |
5844 KB |
Output is correct |
45 |
Correct |
47 ms |
5920 KB |
Output is correct |
46 |
Correct |
52 ms |
5912 KB |
Output is correct |
47 |
Correct |
49 ms |
5908 KB |
Output is correct |
48 |
Correct |
52 ms |
5908 KB |
Output is correct |
49 |
Correct |
59 ms |
5908 KB |
Output is correct |
50 |
Correct |
71 ms |
5972 KB |
Output is correct |
51 |
Correct |
46 ms |
5908 KB |
Output is correct |
52 |
Correct |
57 ms |
5900 KB |
Output is correct |
53 |
Correct |
62 ms |
5908 KB |
Output is correct |
54 |
Correct |
72 ms |
5924 KB |
Output is correct |
55 |
Execution timed out |
2043 ms |
16240 KB |
Time limit exceeded |
56 |
Halted |
0 ms |
0 KB |
- |