#include <stdio.h>
#include <string.h>
int main() {
char sld[19];
printf("\t\t ========== Calculadora de Volume =========="); while (1) {
printf("\nDigite o sólido: "); if (strcmp(sld
, "cilindro") == 0) break; }
}
//https://pt.stackoverflow.com/q/402720/101
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