Submission #429643

#	Time	Username	Problem	Language	Result	Execution time	Memory
429643		oscar1f	Ideal city (IOI12_city)	C++17	11 / 100	1092 ms	3148 KiB

city

#include<bits/stdc++.h>
/*#include <stdio.h>
#include <stdlib.h>
#include <assert.h>*/
using namespace std;
/*
#define inbuf_len 1 << 16
#define outbuf_len 1 << 16*/

const int MOD=1000*1000*1000,MAX_BLOCS=100*1000+1;
int somme,dist,longueur,proch;
int dv[MAX_BLOCS],pos[MAX_BLOCS][2];
map<pair<int,int>,int> grille;
deque<pair<int,int>> atraiter;

int DistanceSum(int nbBlocs, int *X, int *Y) {
  for (int i=1;i<=nbBlocs;i++) {
    pos[i][0]=X[i-1];
    pos[i][1]=Y[i-1];
    grille[make_pair(pos[i][0],pos[i][1])]=i;
  }
  for (int deb=1;deb<nbBlocs;deb++) {
    dist=0;
    atraiter.push_back(make_pair(pos[deb][0],pos[deb][1]));
    while (atraiter.size()>0) {
      longueur=atraiter.size();
      for (int i=0;i<longueur;i++) {
        proch=grille[atraiter.front()];
        atraiter.pop_front();
        if (proch>0 and dv[proch]!=deb) {
          dv[proch]=deb;
          if (proch>deb) {
            somme+=dist;
            somme%=MOD;
          }
          atraiter.push_back(make_pair(pos[proch][0]+1,pos[proch][1]));
          atraiter.push_back(make_pair(pos[proch][0]-1,pos[proch][1]));
          atraiter.push_back(make_pair(pos[proch][0],pos[proch][1]+1));
          atraiter.push_back(make_pair(pos[proch][0],pos[proch][1]-1));
        }
      }
      dist++;
    }
  }
  return somme;
}




//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;

}*/

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