Submission #284990

#TimeUsernameProblemLanguageResultExecution timeMemory
2849903zpAesthetic (NOI20_aesthetic)C++14
0 / 100
406 ms183416 KiB
#include<bits/stdc++.h> #define ll long long using namespace std; const int N = 3000009; vector<ll> v[N]; ll ea[N],eb[N],ec[N],g[N],f[N]; /* 00000111111 */ void ad(ll x){ g[x] = 1; for(ll y : v[x]){ if(g[y] == 1 && !f[y]) cout<<1/0; else if(g[y] == 1) f[y] = 0; if(g[y] == 0) f[y] = 1; } } ll A = 0; main(){ ios_base::sync_with_stdio(false); cin.tie(0); ll n, m; cin >> n >> m; for(ll i = 0; i < m; i++){ cin>>ea[i]>>eb[i]>>ec[i]; } for(ll i = m-1; i >= 0; i--){ ll a = ea[i], b = eb[i], c = ec[i]; v[a].push_back(i); v[b].push_back(i); } for(ll i=1;i<= n; i++) ad(i); }

Compilation message (stderr)

Aesthetic.cpp: In function 'void ad(long long int)':
Aesthetic.cpp:14:39: warning: division by zero [-Wdiv-by-zero]
   14 |         if(g[y] == 1 && !f[y]) cout<<1/0;
      |                                      ~^~
Aesthetic.cpp: At global scope:
Aesthetic.cpp:20:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   20 | main(){
      |      ^
Aesthetic.cpp: In function 'int main()':
Aesthetic.cpp:29:34: warning: unused variable 'c' [-Wunused-variable]
   29 |         ll a = ea[i], b = eb[i], c = ec[i];
      |                                  ^
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