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  1. #include <stdbool.h>
  2. #include <stdio.h>
  3. #include <ctype.h>
  4.  
  5. bool minusculo(const char *s) {
  6. for (int i = 0; s[i] != 0; i++) if (isupper(s[i])) return false;
  7. return true;
  8. }
  9.  
  10. int main(){
  11. char str[] = "1 exercicio pratico ";
  12. if (minusculo(str)) printf("\"%s\" tem todos os caracteres minusculos\n", str);
  13. else printf("\"%s\" NAO tem todos os caracteres minusculos\n", str);
  14. }
  15.  
  16. //https://pt.stackoverflow.com/q/476026/101
Success #stdin #stdout 0s 4412KB
stdin
Standard input is empty
stdout
"1 exercicio pratico " tem todos os caracteres minusculos