제출 #172175

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
172175	2019-12-31 13:03:49	GioChkhaidze	Hard route (IZhO17_road)	C++14	100 / 100	1195 ms	112860 KiB

road

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#include <bits/stdc++.h>
#define ll long long
#define F first
#define S second
using namespace std;
const int N=5e5+5;
ll n;
vector < ll > v[N];
pair < ll , ll > D[N],T[N],ans;
void Dfs(int x,int p) {
  for (int i=0; i<v[x].size(); i++) 
    if (v[x][i]==p) { swap(v[x][i],v[x][v[x].size()-1]); v[x].pop_back(); break; }
  
  for (int i=0; i<v[x].size(); i++) {
    int to=v[x][i];
    Dfs(to,x);
    if (D[to].F>D[x].F) D[x]=D[to];
      else
    if (D[to].F==D[x].F) D[x].S+=D[to].S; 
  }
  
  D[x].F++;
  if (!v[x].size()) D[x].S=1;
}
 
void Ufs(int x) {
  pair < ll , ll > M1,M2;
  M1.F=M1.S=M2.F=M2.S=0; 
  M1=D[x],M1.F--;
  
 
 
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컴파일 시 표준 에러 (stderr) 메시지

road.cpp: In function 'void Dfs(int, int)':
road.cpp:11:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<v[x].size(); i++) 
                ~^~~~~~~~~~~~
road.cpp:14:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<v[x].size(); i++) {
                ~^~~~~~~~~~~~
road.cpp: In function 'void Ufs(int)':
road.cpp:31:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<v[x].size(); i++) {
                ~^~~~~~~~~~~~
road.cpp:41:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<v[x].size(); i++) {
                ~^~~~~~~~~~~~
road.cpp: In function 'void Df(int)':
road.cpp:59:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<v[x].size(); i++) 
                ~^~~~~~~~~~~~
road.cpp:68:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i=2; i<s.size(); i++) 
                 ~^~~~~~~~~
road.cpp:72:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i=0; i<s.size(); i++)
                  ~^~~~~~~~~
road.cpp:81:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i=1; i<s.size(); i++)
                  ~^~~~~~~~~
road.cpp:91:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<v[x].size(); i++)
                ~^~~~~~~~~~~~
road.cpp: At global scope:
road.cpp:95:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () { 
       ^
road.cpp: In function 'int main()':
road.cpp:96:15: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
  scanf("%d",&n);
             ~~^
road.cpp:96:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
road.cpp:100:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a,&b);
   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 33 / 33
• Subtask 3: 48 / 48