Submission #704102

#	Time	Username	Problem	Language	Result	Execution time	Memory
704102		1075508020060209tc	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	1 ms	308 KiB

joi2019_ho_t4

//#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define X first
#define Y second
int n;
pair<int,int>ar[500005];

int vsa[500005];
int vsb[500005];

signed main(){

cin>>n;
for(int i=1;i<=n+n;i++){
    cin>>ar[i].X>>ar[i].Y;
}

vector<pair<int,pair<int,int>>>seq;
for(int j=1;j<=n;j++){
    for(int i=1;i<=n+n;i++){
        int cst=abs(ar[i].X-j)+abs(ar[i].Y-1);
        seq.push_back({cst,{i,j}});
    }
}
for(int j=1;j<=n;j++){
    for(int i=1;i<=n+n;i++){
        int cst=abs(ar[i].X-j)+abs(ar[i].Y-2);
        seq.push_back({cst,{i,j+n}});
    }
}

sort(seq.begin(),seq.end());
int ans=0;
for(int i=0;i<seq.size();i++){
    if(vsa[seq[i].second.first]==0&&vsb[seq[i].second.second]==0){
        ans+=seq[i].first;
    }
}
cout<<ans<<endl;

}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'int main()':
joi2019_ho_t4.cpp:36:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 | for(int i=0;i<seq.size();i++){
      |             ~^~~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63