#include <stdio.h> #include <string.h> #include <ctype.h> int main() { char password[] = "Secret42"; int hasUpper = 0; int hasDigit = 0; int i; for (i = 0; i < strlen(password); i++) { if (isupper(password[i])) { hasUpper = 1; } if (isdigit(password[i])) { hasDigit = 1; } } if (hasUpper && hasDigit) { printf("The password is OK\n"); } else { printf("The password needs an uppercase letter and a digit\n"); } return 0; }