# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
917814 | _VIBE | Team Contest (JOI22_team) | C++17 | 53 ms | 22472 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "bits/stdc++.h"
using namespace std;
#define int long long
#define endl '\n'
void Excuse_Me(int TC)
{
int n;
cin>>n;
vector<vector<int>> g(n,vector<int>(3));
vector<int> mx(3,0);
priority_queue<pair<int,pair<int,int>>> pq;
for(int i=0;i<n;i++){
for(int j=0;j<3;j++){
cin>>g[i][j];
pq.push({g[i][j],{i,j}});
mx[j]=max(mx[j],g[i][j]);
}
}
vector<int> ans(3,-1);
int count=3;
vector<bool> banned(n,0);
while(!pq.empty() and count){
pair<int,pair<int,int>> p=pq.top();
int val=p.first,i=p.second.first,j=p.second.second;
pq.pop();
if(ans[j]!=-1) continue;
bool poss=!banned[i];
for(int k=0;k<3;k++){
if(k==j) continue;
if(g[i][k]==mx[k]) poss=false;
}
if(poss){
banned[i]=true;
ans[j]=val;count--;
}
}
if(count) cout<<-1;
else{
int x=0;
for(auto e:ans) x+=e;
cout<<x;
}
}
signed main()
{
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
freopen("error.txt","w",stderr);
int Tc=1;
// cin>>Tc;
for(int tc=1;tc<=Tc;tc++)
{
Excuse_Me(tc);
}
return 0;
}
Compilation message (stderr)
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