Submission #48374

#	Time	Username	Problem	Language	Result	Execution time	Memory
48374		Extazy	Treasure (different grader from official contest) (CEOI13_treasure2)	C++17	Compilation error	0 ms	0 KiB

treasure

#include <bits/stdc++.h>
#define endl '\n'

using namespace std;

const int N = 107;

int n,all;
char out[N][N];

void print_answer() {
  int i,j;
  printf("END\n");
  fflush(stdout);
  for(i=1;i<=n;i++) {
    for(j=1;j<=n;j++) {
      printf("%c", out[i][j]);
    }
    printf("\n");
  }
  fflush(stdout);
}

void fill_all(int r1, int r2, int c1, int c2) {
  int i,j;

  for(i=r1;i<=r2;i++) {
    for(j=c1;j<=c2;j++) {
      out[i][j]='1';
    }
  }
}

int ask(int r1, int r2, int c1, int c2) {
  printf("%d %d %d %d\n", r1, c1, r2, c2);
  fflush(stdout);
  int ans;
  scanf("%d", &ans);
  return ans;
}

void go(int r1, int r2, int c1, int c2, int all) {
  if(all==0) return;
  if(all==(r2-r1+1)*(c2-c1+1)) {
		fill_all(r1,r2,c1,c2);
    return;
  }

  int mid;

  if(r1==r2) {
    mid=(c1+c2)/2;
    
    int all2=ask(r1,r2,mid+1,c2),all1=all-all2;

    go(r1,r2,c1,mid,all1);
    go(r1,r2,mid+1,c2,all2);
  }
  else if(c1==c2) {
    mid=(r1+r2)/2;

    int all2=ask(mid+1,r2,c1,c2),all1=all-all2;

    go(r1,mid,c1,c2,all1);
    go(mid+1,r2,c1,c2,all2);
  }
  else if(rand()%2==0) {
    mid=(c1+c2)/2;
    
    int all2=ask(r1,r2,mid+1,c2),all1=all-all2;

    go(r1,r2,c1,mid,all1);
    go(r1,r2,mid+1,c2,all2);
  }
  else {
    mid=(r1+r2)/2;

    int all2=ask(mid+1,r2,c1,c2),all1=all-all2;

    go(r1,mid,c1,c2,all1);
    go(mid+1,r2,c1,c2,all2);
  }
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int i,j;

  scanf("%d", &n);

  for(i=1;i<=n;i++) {
    for(j=1;j<=n;j++) {
      out[i][j]='0';
    }
  }

  all=ask(1,n,1,n);
  go(1,n,1,n,all);
  print_answer();

  return 0;
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:63:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         my_assert(strlen(A[i]+1) == N, "each line of the map must contain N zeroes or ones (before loop)");
                   ~~~~~~~~~~~~~~~^~~~
treasure.cpp: In function 'int ask(int, int, int, int)':
treasure.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &ans);
   ~~~~~^~~~~~~~~~~~
treasure.cpp: In function 'int main()':
treasure.cpp:90:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ~~~~~^~~~~~~~~~
/tmp/cczLlUtR.o: In function `main':
treasure.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccwVYFsj.o:grader.c:(.text.startup+0x0): first defined here
/tmp/ccwVYFsj.o: In function `main':
grader.c:(.text.startup+0x106): undefined reference to `findTreasure(int)'
collect2: error: ld returned 1 exit status