#include <stdbool.h>
#include <stdio.h>
#include <ctype.h>
bool minusculo(const char *s) {
for (int i
= 0; s
[i
] != 0; i
++) if (isupper(s
[i
])) return false; return true;
}
int main(){
char str[] = "1 exercicio pratico ";
if (minusculo
(str
)) printf("\"%s\" tem todos os caracteres minusculos\n", str
); else printf("\"%s\" NAO tem todos os caracteres minusculos\n", str
); }
//https://pt.stackoverflow.com/q/476026/101
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