#include <stdio.h> #include <stdint.h> // A = 65 // a = 97 // a - A = 97 - 65 = 32 void to_lowercase(char *str) { while (*str != '\0'){ if ((*str >= 'A') && (*str <= 'Z')){ *str = (*str + ('a' - 'A')); } str++; } } int main() { char str[101]; fgets(str, sizeof(str), stdin); // Remove newline uint8_t i = 0; while (str[i]) { if (str[i] == '\n') { str[i] = '\0'; break; } i++; } to_lowercase(str); printf("%s", str); return 0; }
Test Cases
Test Results
Input
Hello Embedded
Expected Output
hello embedded