Submission #282298

#	Time	Username	Problem	Language	Result	Execution time	Memory
282298		youssefbou62	Ideal city (IOI12_city)	C++14	0 / 100	7 ms	640 KiB

city

#include  <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp> 
#include <ext/pb_ds/tree_policy.hpp> 

using namespace __gnu_pbds;

#define mp make_pair
#define fi first
#define se second
#define all(v) v.begin(),v.end()
#define allarr(a) a , a + n
#define ll long long
#define ull unsigned long long 
#define pb push_back
#define fastio ios_base::sync_with_stdio(false) ; cin.tie(NULL); cout.tie(NULL)
#define sz(x)  (int)x.size() 
typedef pair<int, int> pi;
typedef pair<ll,ll> pll; 
typedef pair<int,pi> trp ;
typedef vector<pi> vpi;
typedef vector<pll> vpll ;
// int ab  (int  x ) { return (x>0?x:-x); }
//typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;



const ll MOD = 1e9; 

ll ser(int n){
	ll x = 1LL*n ; 
	return ((x*(x+1))/2)%MOD; 
}
int DistanceSum(int N, int *X, int *Y) {
	sort(X,X+N); 
	sort(Y,Y+N); 
	int MinX= X[0]; 
	int MinY = Y[0]; 
	ll ans = 0 ; 
	for(int i = 0 ; i < N ; i++ ){
		ans += ser(X[i]-X[0]); 
		ans %= MOD ; 
	}
	for(int i = 0 ; i < N ; i++ ){
		ans += ser(Y[i]-Y[0]); 
		ans %= MOD ; 
	}


  return ((int)ans);

}



// #define inbuf_len 1 << 16
// #define outbuf_len 1 << 16

// int DistanceSum(int N, int *X, int *Y);

// int main() {
//   int tmp;

//   /* Set input and output buffering */
//   char *inbuf, *outbuf;
//   inbuf = (char*) malloc(inbuf_len * sizeof(char));
//   outbuf = (char*) malloc(outbuf_len * sizeof(char));
//   tmp = setvbuf(stdin, inbuf, _IOFBF, inbuf_len);
//   assert(tmp == 0);
//   tmp = setvbuf(stdout, outbuf, _IOFBF, outbuf_len);
//   assert(tmp == 0);

//   int N, i;
//   tmp = scanf("%d", &N);
//   assert(tmp == 1);
//   int *sq_x, *sq_y;
//   sq_x = (int*) malloc(N * sizeof(int));
//   sq_y = (int*) malloc(N * sizeof(int));
//   for (i = 0; i < N; i++) {
//     tmp = scanf("%d %d", &sq_x[i], &sq_y[i]);
//     assert(tmp == 2);
//   }
//   int ds = DistanceSum(N, sq_x, sq_y);
//   printf("%d\n", ds);

//   return 0;

// }

Compilation message (stderr)

city.cpp: In function 'int DistanceSum(int, int*, int*)':
city.cpp:37:6: warning: unused variable 'MinX' [-Wunused-variable]
   37 |  int MinX= X[0];
      |      ^~~~
city.cpp:38:6: warning: unused variable 'MinY' [-Wunused-variable]
   38 |  int MinY = Y[0];
      |      ^~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 21
• Subtask 3: 0 / 23
• Subtask 4: 0 / 45