| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1353622 | yyc000123 | Bikes vs Cars (EGOI23_bikesvscars) | C++20 | 9 ms | 2412 KiB |
#include<bits/stdc++.h>
using namespace std ;
const int N = 505 ;
const int W = 1e6+5 ;
int n , w , arr[N][N][2] ;
int main(){
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0) ;
cin >> n >> w ;
for(int i=1 ; i<n ; i++){
for(int j=0 ; j<i ; j++) cin >> arr[i][j][1] ;
}
for(int i=1 ; i<n ; i++){
for(int j=0 ; j<i ; j++) cin >> arr[i][j][0] ;
}
if(arr[1][0][0]+arr[1][0][1]<w){
cout << "NO\n" ;
return 0 ;
}
cout << 2*(n-1) << '\n' ;
for(int i=1 ; i<n ; i++) cout << 0 << ' ' << i << ' ' << arr[i][0][0] << '\n' ;
for(int i=1 ; i<n ; i++) cout << 0 << ' ' << i << ' ' << w-arr[i][0][1] << '\n' ;
return 0 ;
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