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  1. #include <stdio.h>
  2. //課題2
  3. int main(void) {
  4. int a,b,c;
  5. scanf("%d %d %d",&a,&b,&c);
  6. if(a<b && b<c)
  7. printf("Yes");
  8. else
  9. printf("No");
  10. return 0;
  11. }
  12.  
Success #stdin #stdout 0s 5288KB
stdin
1 2 3 
stdout
Yes