| Task: | Grid |
| Sender: | abcdef6199 |
| Submission time: | 2017-01-22 10:42:12 +0200 |
| Language: | C++ |
| Status: | READY |
| Result: | 0 |
| group | verdict | score |
|---|---|---|
| #1 | WRONG ANSWER | 0 |
| #2 | WRONG ANSWER | 0 |
| #3 | WRONG ANSWER | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | WRONG ANSWER | 0.04 s | 1 | details |
| #2 | WRONG ANSWER | 0.04 s | 1 | details |
| #3 | WRONG ANSWER | 0.04 s | 1 | details |
| #4 | WRONG ANSWER | 0.04 s | 1 | details |
| #5 | WRONG ANSWER | 0.04 s | 1 | details |
| #6 | WRONG ANSWER | 0.04 s | 1 | details |
| #7 | WRONG ANSWER | 0.04 s | 1 | details |
| #8 | WRONG ANSWER | 0.04 s | 1 | details |
| #9 | WRONG ANSWER | 0.04 s | 1 | details |
| #10 | WRONG ANSWER | 0.04 s | 2 | details |
| #11 | WRONG ANSWER | 0.04 s | 2 | details |
| #12 | WRONG ANSWER | 0.03 s | 2 | details |
| #13 | WRONG ANSWER | 0.04 s | 2 | details |
| #14 | WRONG ANSWER | 0.04 s | 2 | details |
| #15 | WRONG ANSWER | 0.04 s | 2 | details |
| #16 | WRONG ANSWER | 0.04 s | 3 | details |
| #17 | WRONG ANSWER | 0.05 s | 3 | details |
| #18 | WRONG ANSWER | 0.05 s | 3 | details |
| #19 | WRONG ANSWER | 0.04 s | 3 | details |
| #20 | WRONG ANSWER | 0.03 s | 3 | details |
| #21 | WRONG ANSWER | 0.03 s | 3 | details |
Compiler report
input/code.cpp: In function 'int main()':
input/code.cpp:26:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &n, &m);
^
input/code.cpp:28:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
int u, v; scanf("%d%d", &u, &v);
^Code
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int, int> II;
const int N = (int) 1e5 + 10;
int n, m, deg[N], sum;
vector<int> adj[N];
bool fre[N];
void DFS(int u) {
fre[u] = false; if (deg[u] > 0) sum += deg[u];
for (int i = 0; i < (int) adj[u].size(); ++i) {
int v = adj[u][i];
if (fre[v]) DFS(v);
}
}
int main() {
#ifdef LOCAL
freopen("Data.inp", "r", stdin);
freopen("Data.out", "w", stdout);
#endif
scanf("%d%d", &n, &m);
while (m--) {
int u, v; scanf("%d%d", &u, &v);
deg[u]--; deg[v]++;
adj[u].push_back(v);
adj[v].push_back(u);
}
int ans = 0; memset(fre, true, sizeof fre);
for (int i = 1; i <= n; ++i) if (fre[i]) {
sum = 0; DFS(i);
ans += sum;
}
printf("%d", ans);
return 0;
}
Test details
Test 1
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 2 |
| correct output |
|---|
| QAQ |
| user output |
|---|
| 0 |
Test 2
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 3 |
| correct output |
|---|
| QAQ |
| user output |
|---|
| 0 |
Test 3
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 4 |
| correct output |
|---|
| 3 4 3 4 3 1 1 2 4 4 3 2 2 2 1 1 |
| user output |
|---|
| 0 |
Test 4
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 5 |
| correct output |
|---|
| 2 3 4 1 1 3 4 2 1 2 4 2 3 1 3 4 3 2 1 4 5 5 5 5 5 |
| user output |
|---|
| 0 |
Test 5
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 6 |
| correct output |
|---|
| 2 3 4 5 1 1 3 4 5 2 1 2 4 5 2 3 1 3 5 2 3 4 1 4 5 4 3 2 1 5 ... |
| user output |
|---|
| 0 |
Test 6
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 7 |
| correct output |
|---|
| 2 3 4 5 6 1 1 3 4 5 6 2 1 2 4 5 6 2 3 1 3 5 6 2 3 4 1 4 6 2 3 4 5 1 5 ... |
| user output |
|---|
| 0 |
Test 7
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 8 |
| correct output |
|---|
| 2 3 4 5 6 7 1 1 3 4 5 6 7 2 1 2 4 5 6 7 2 3 1 3 5 6 7 2 3 4 1 4 6 7 2 3 4 5 1 5 ... |
| user output |
|---|
| 0 |
Test 8
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 9 |
| correct output |
|---|
| 2 3 4 5 6 7 8 1 1 3 4 5 6 7 8 2 1 2 4 5 6 7 8 2 3 1 3 5 6 7 8 2 3 4 1 4 6 7 8 2 3 4 5 1 5 ... |
| user output |
|---|
| 0 |
Test 9
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 10 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 1 1 3 4 5 6 7 8 9 2 1 2 4 5 6 7 8 9 2 3 1 3 5 6 7 8 9 2 3 4 1 4 6 7 8 9 2 3 4 5 1 5 ... |
| user output |
|---|
| 0 |
Test 10
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 3 |
| correct output |
|---|
| QAQ |
| user output |
|---|
| 0 |
Test 11
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 4 |
| correct output |
|---|
| 3 4 3 4 3 1 1 2 4 4 3 2 2 2 1 1 |
| user output |
|---|
| 0 |
Test 12
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 29 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 13
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 48 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 14
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 80 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 15
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 97 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 16
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 3 |
| correct output |
|---|
| QAQ |
| user output |
|---|
| 0 |
Test 17
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 4 |
| correct output |
|---|
| 3 4 3 4 3 1 1 2 4 4 3 2 2 2 1 1 |
| user output |
|---|
| 0 |
Test 18
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 111 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 19
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 506 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 20
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 844 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |
Test 21
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 991 |
| correct output |
|---|
| 2 3 4 5 6 7 8 9 10 11 12 13 14... |
| user output |
|---|
| 0 |