Submission #285001

#	Time	Username	Problem	Language	Result	Execution time	Memory
285001		3zp	Aesthetic (NOI20_aesthetic)	C++14	0 / 100	368 ms	160660 KiB

Aesthetic

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N = 3000009;
vector<pair<int,int> > v[N];
int ea[N],eb[N],ec[N],g[N],f[N];
/*
00000111111

*/
void ad(int x){
    g[x] = 1;
    for(auto E : v[x]){
        int y = E.first, i = E.second;
        if(g[y] == 1 && !f[i]) cout<<1/0;
        else if(g[y] == 1) f[i] = 0;
        if(g[y] == 0) f[i] = 1;
    }
}
int A = 0;
main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    for(int i = 0; i < m; i++){
        cin>>ea[i]>>eb[i]>>ec[i];
    }
    for(int i = m-1; i >= 0; i--){
        int a = ea[i], b = eb[i], c = ec[i];
        if(a==b)cout<<1/0;
        v[a].push_back({b,i});
        v[b].push_back({a,i});
    }
    for(int i=1;i<= n; i++)
    ad(i);
}

Compilation message (stderr)

Aesthetic.cpp: In function 'void ad(long long int)':
Aesthetic.cpp:15:39: warning: division by zero [-Wdiv-by-zero]
   15 |         if(g[y] == 1 && !f[i]) cout<<1/0;
      |                                      ~^~
Aesthetic.cpp: At global scope:
Aesthetic.cpp:21:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   21 | main(){
      |      ^
Aesthetic.cpp: In function 'int main()':
Aesthetic.cpp:31:24: warning: division by zero [-Wdiv-by-zero]
   31 |         if(a==b)cout<<1/0;
      |                       ~^~
Aesthetic.cpp:30:35: warning: unused variable 'c' [-Wunused-variable]
   30 |         int a = ea[i], b = eb[i], c = ec[i];
      |                                   ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 7
• Subtask 4: 0 / 15
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22
• Subtask 7: 0 / 27