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  1. #include <stdio.h>
  2.  
  3. void histogram(char *);
  4.  
  5. int main() {
  6. 	char str[50];
  7.  
  8. 	printf("\n\tDigite uma frase: ");
  9. 	fgets(str,50,stdin);
  10. 	histogram(str);
  11.  
  12. }
  13.  
  14. void histogram(char *frase) {
  15. 	int num=0, num2=0, az=0;
  16. 	char alfabeto[]="abcdefghijklmnopqrstuvwxyzçABCDEFGHIJKLMNOPQRSTUVWXYZÇ";
  17. 	int contagens[256];
  18. 	for (num= 0; num < 256; ++num){
  19.         contagens[num]=0;
  20. 	}
  21.  
  22. 	for(num = 0; frase[num] != 0; num++) {
  23.         for (num2 = 0; alfabeto[num2] != '\0'; ++num2){
  24.             char letra = frase[num];
  25.             if (letra == alfabeto[num2]){
  26.                 contagens[(int)letra]++;
  27.                 az++;
  28.                 break;
  29.             }
  30.         }
  31. 	}
  32.  
  33. 	printf("\n\n\tTemons %d letras\n\n", az);
  34. 	for (num = 0; num < 256; ++num){
  35.         if (contagens[num] > 0){
  36.             printf("\n%c: %d", (char)num, contagens[num]);
  37.         }
  38. 	}
  39. }
  40.  
Success #stdin #stdout 0s 4372KB
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stdin
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texto de exemplo
stdout
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	Digite uma frase: 

	Temons 14 letras


d: 1
e: 4
l: 1
m: 1
o: 2
p: 1
t: 2
x: 2
https://ideone.com/LLtMNw
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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