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SkolaRajakAndroid

POYYY

Feb 6th, 2016
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C++ 0.13 KB | None | 0 0
  1. int is_number(char* str) {
  2.     int i;
  3.     for(i = 0; i < strlen(str); i++){
  4.         if(!is_digit(str[i]){
  5.             return -1;
  6.         }
  7.     }
  8.     return 0;
  9.  
  10. }
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