Submission #115212

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
115212	2019-06-06 04:32:55	IOrtroiii	One-Way Streets (CEOI17_oneway)	C++14	100 / 100	170 ms	22340 KiB

oneway

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#include <bits/stdc++.h>
using namespace std;
const int N = 100100;
int n, m, q;
bool visit[N];
int p[N], ans[N];
vector<pair<int, int>> g[N];
vector<pair<int, int>> g2[N];
int num[N], low[N], tt;
int par[N], parid[N], dep[N];
vector<tuple<int, int, int>> tr;
int getp(int u) {
   if (p[u] == u) {
      return u;
   } else {
      return p[u] = getp(p[u]);
   }
}
void mrg(int u, int v) {
   p[getp(v)] = getp(u);
}
void dfs(int u, int pid) {
   num[u] = low[u] = ++tt;
   for (auto e : g[u]) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

oneway.cpp: In function 'int main()':
oneway.cpp:59:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d", &n, &m);
    ~~~~~^~~~~~~~~~~~~~~~~
oneway.cpp:63:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d %d", &u, &v);
       ~~~~~^~~~~~~~~~~~~~~~~
oneway.cpp:79:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &q);
    ~~~~~^~~~~~~~~~
oneway.cpp:82:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d %d", &u, &v);
       ~~~~~^~~~~~~~~~~~~~~~~

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