제출 #48876

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
48876	2018-05-19 11:49:25	kriii	철인 이종 경기 (APIO18_duathlon)	C++17	31 / 100	360 ms	32228 KiB

count_triplets

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#include <stdio.h>
#include <vector>
#include <set>
using namespace std;
int N,M,X[200200],Y[200200],P[200200]; bool chk[300300];
vector<int> G[100100],V[300300];
int dep[200200],low[200200];
int sz[300300],ho[300300];
int find(int x)
{
  if (P[x] != x) P[x] = find(P[x]);
  return P[x];
}
void go(int x, int l)
{
  low[x] = dep[x];
  chk[x] = 1;
  for (auto &i : G[x]) if (i != l){
    int y = (x == X[i] ? Y[i] : X[i]);
    if (!chk[y]){
      dep[y] = dep[x] + 1;
      go(y,i);
      if (dep[x] > low[y]){
        if (l != -1) P[find(l)] = find(i);
      }
      if (low[x] > low[y])
        low[x] = low[y];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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컴파일 시 표준 에러 (stderr) 메시지

count_triplets.cpp: In function 'int main()':
count_triplets.cpp:66:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d %d",&N,&M);
  ~~~~~~^~~~~~~~~~~~~~~
count_triplets.cpp:68:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d %d",&X[i],&Y[i]);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~

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