Submission #303940

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
303940	2020-09-20 19:48:50	peuch	One-Way Streets (CEOI17_oneway)	C++17	0 / 100	6 ms	9728 KiB

oneway

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#include<bits/stdc++.h>
using namespace std;
const int MAXN = 100010;
int n, m, p;
int low[MAXN], pre[MAXN];
int cnt;
int bridge[MAXN];
pair<int, int> edge[MAXN];
int rep[MAXN], tam[MAXN];
int auxSum[MAXN];
int ans[MAXN];
vector<int> ar[MAXN], id[MAXN];
vector<int> tree[MAXN], treeID[MAXN];
void dfs(int cur, int pai);
void uni(int a, int b);
int find(int a);
void endCalc(int cur, int pai);
int main(){
  scanf("%d %d", &n, &m);
  for(int i = 1; i <= n; i++) rep[i] = i, tam[i] = 1;
  for(int i = 1; i <= m; i++){
    int a, b;
    scanf("%d %d", &a, &b);
    ar[a].push_back(b);
 
 
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Compilation message (stderr)

oneway.cpp: In function 'void dfs(int, int)':
oneway.cpp:72:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |  for(int i = 0; i < ar[cur].size(); i++){
      |                 ~~^~~~~~~~~~~~~~~~
oneway.cpp: In function 'void endCalc(int, int)':
oneway.cpp:100:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |  for(int i = 0; i < tree[cur].size(); i++){
      |                 ~~^~~~~~~~~~~~~~~~~~
oneway.cpp: In function 'int main()':
oneway.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |  scanf("%d %d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~~
oneway.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |   scanf("%d %d", &a, &b);
      |   ~~~~~^~~~~~~~~~~~~~~~~
oneway.cpp:52:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   52 |  scanf("%d", &p);
      |  ~~~~~^~~~~~~~~~
oneway.cpp:55:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   55 |   scanf("%d %d", &a, &b);
      |   ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40