oj.uz

Submission #416070

# Submission time Handle Problem Language Result Execution time Memory
416070 2021-06-01T22:01:13 Z Pichon5 Paths (BOI18_paths) C++17
20 / 100
 364 ms 14140 KB 
#include<bits/stdc++.h>
#define ll long long int
#define pb push_back
#define vi vector<int>
#define vll vector<ll>
#define ff first
#define ss second
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
//"\n" __builtin_popcount
using namespace std;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
const int tam=300005;
ll G[tam][3];
ll C[tam];
int  main(){
   ll n,m,k,x,a,b;
   cin>>n>>m>>k;
   for(int i=1;i<=n;i++){
      cin>>x;
      C[i]=x-1;
   }
   ll res=0;   
   for(int i=0;i<m;i++){
      cin>>a>>b;
      if(C[a]!=C[b])res+=2;
      G[a][C[b]]++;
      G[b][C[a]]++;
   }
   for(int i=1;i<=n;i++){
      if(C[i]==0)res+=2*G[i][1]*G[i][2];
      if(C[i]==1)res+=2*G[i][0]*G[i][2];
      if(C[i]==2)res+=2*G[i][0]*G[i][1];
   }
   cout<<res<<endl;
   return 0;
}

Compilation message

paths.cpp:12: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   12 | #pragma GCC optimization ("O3")
      | 
paths.cpp:13: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   13 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 300 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 192 ms 1468 KB Output is correct
2 Correct 157 ms 824 KB Output is correct
3 Correct 345 ms 12092 KB Output is correct
4 Correct 207 ms 2500 KB Output is correct
5 Correct 224 ms 2436 KB Output is correct
6 Correct 295 ms 8524 KB Output is correct
7 Correct 333 ms 14136 KB Output is correct
8 Correct 364 ms 14140 KB Output is correct

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 300 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Incorrect 52 ms 764 KB Output isn't correct
3 Halted 0 ms 0 KB -