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  1. #include <stdio.h>
  2. int main()
  3. {
  4.     int n,i,j,count,start,end,m=0;
  5.     scanf("%d %d", &start,&end);
  6.     for(j=start;j<=end;j++){
  7.             count=2;
  8.             i=j;
  9.        for(n=0;n<=10000000;n++){
  10.  
  11.             if(i%2==0){
  12.                 i=i/2;
  13.             }
  14.             else if(i%2!=0){
  15.                 i=3*i+1;
  16.             }
  17.             if(i==1){
  18.                 break;
  19.             }
  20.        count++;
  21.  
  22.        }
  23.        if(m<count){
  24.         m=count;
  25.  
  26.        }
  27.  
  28.  
  29.        }
  30.        printf("%d\n", m);
  31.    return 0;
  32. }
  33.  
Success #stdin #stdout 0s 2056KB
comments (?)
stdin 
Standard input is empty
stdout 
0
https://ideone.com/5DUjt2
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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