Submission #155931

---

Source Code Expand

#include <stdio.h>

int main( void) {
  int n, i;
  int t1, t2, t3, t4;

  scanf( "%d", &n);

  switch ( n) {
  case 1:
    puts( "0");
    break;
  case 2:
    puts( "0");
    break;
  case 3:
    puts( "1");
    break;
  default:
    t1 = t2 = 0; t3 = 1;
  
    for ( i = 4; i <= n; i++) {
      t4 = t1 + t2 + t3;
      if ( t4 > 10007) t4 %= 10007;
      t1 = t2;
      t2 = t3;
      t3 = t4;
    }

    printf( "%d\n", t4);
    break;
  }
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:7:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result