oj.uz

답안 #133508

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
133508 2019-07-21T01:32:56 Z DanerZein Shortcut (IOI16_shortcut) C++14
0 / 100
 4 ms 632 KB 
#include "shortcut.h"
#include <bits/stdc++.h>
#define MAX 10000000000
using namespace std;
typedef pair<int,int> ii;
typedef vector<ii> vi;
vector<vi>G;
int ml;
vector<int>dist(2000);

void bfs(int u){
  // cout<<"bfs (u) "<<u<<endl;
  dist[u]=0;
  vector<int>vis(ml,0);
  queue<int>q;
  q.push(u);
  vis[u]=1;
  while(!q.empty()){
    int v=q.front();
    q.pop();
    vis[v]=0;
    for(int i=0;i<G[v].size();i++){
      long long x=G[v][i].first;
      long long w=G[v][i].second;
      //cout<<v<<" "<<w<<endl;
      if(dist[v]+w<dist[x]){
	dist[x]=dist[v]+w;
	if(vis[x]==0){
	  q.push(x);
	  vis[x]=1;
	}
      }
    }
  }
}
long long find_shortcut(int  n, std::vector<int> l, std::vector<int> d, int c){
 
  ml=n;
  G.resize(2*n+1);
  for(long long i=0;i<l.size();i++){
    G[i+1].push_back(ii(i,l[i]));
    G[i].push_back(ii(i+1,l[i]));
  }
  for(long long i=0;i<d.size();i++){
    if(d[i]!=0){
      G[i+n].push_back(ii(i,d[i]));
      G[i].push_back(ii(i+n,d[i]));
    }
  }
  long long mi=MAX;
  for(long long i=0;i<n;i++){
    for(long long j=i+1;j<n;j++){
      G[i].push_back(ii(j,c));
      G[j].push_back(ii(i,c));
      long long ma=-1;
      for(long long k=0;k<G.size();k++){
	if(!G[k].empty()){
	  fill(dist.begin(),dist.end(),MAX);
	  bfs(k);
	  long long no; 
	  for(long long l=0;l<G.size();l++){
	    if(dist[l]>ma and !G[l].empty()){
	      no=k;
	      ma=dist[l];
	    }
	  }
	  
	}
      }
      
      G[i].pop_back();
      G[j].pop_back();
      mi=min(mi,ma);
    }
  }
  return mi;

}

Compilation message

shortcut.cpp: In function 'void bfs(int)':
shortcut.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<G[v].size();i++){
                 ~^~~~~~~~~~~~
shortcut.cpp: In function 'long long int find_shortcut(int, std::vector<int>, std::vector<int>, int)':
shortcut.cpp:40:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(long long i=0;i<l.size();i++){
                     ~^~~~~~~~~
shortcut.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(long long i=0;i<d.size();i++){
                     ~^~~~~~~~~
shortcut.cpp:56:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(long long k=0;k<G.size();k++){
                         ~^~~~~~~~~
shortcut.cpp:61:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(long long l=0;l<G.size();l++){
                      ~^~~~~~~~~
shortcut.cpp:60:14: warning: variable 'no' set but not used [-Wunused-but-set-variable]
    long long no; 
              ^~

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB n = 4, 80 is a correct answer
2 Correct 3 ms 248 KB n = 9, 110 is a correct answer
3 Runtime error 4 ms 632 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -