oj.uz

Submission #642319

# Submission time Handle Problem Language Result Execution time Memory
642319 2022-09-19T08:33:08 Z cigneve Guess the number (BOI20_guess) C++14
0 / 100
 0 ms 208 KB 
#pragma GCC optimize ("O3")
#include <stdio.h>
int main(){
  int N,input=5;
  scanf("%d",&N);
  int l=1,r=N;
  while (input!=0){
    printf("? %d\n",(r-l)/2+l);
    scanf("%d",&input);
    if (input==1){
      l=(r-l)/2+l;
    }
    else if (input==-1){
      r=(r-l)/2+l;
    }
  }
  printf("= %d",(r-l)/2+l);
}

Compilation message

Guess.cpp: In function 'int main()':
Guess.cpp:5:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 |   scanf("%d",&N);
      |   ~~~~~^~~~~~~~~
Guess.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d",&input);
      |     ~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 29.0

# Verdict Execution time Memory Grader output
1 Execution timed out 0 ms 208 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -

Subtask #2
0 / 71.0

# Verdict Execution time Memory Grader output
1 Execution timed out 0 ms 208 KB Time limit exceeded (wall clock)
2 Halted 0 ms 0 KB -