599 : 문자열1 - 자가진단7

#include <stdio.h>
#include <string.h>
 
#pragma warning (disable:4996)
 
int main()
{
    char string[100] = { '\0', };
    char output[100] = { '\0', };
    int count = 0;
 
    scanf("%s", string);
 
    for (int i = 0; i < strlen(string); i++)
    {
        if (('A' <= string[i]) && (string[i] <= 'Z')) {
            
            output[count] = string[i];
            count++;
        }
        else if (('a' <= string[i]) && (string[i] <= 'z')) {
 
            output[count] = string[i] - ('a' - 'A');
            count++;
        }
    }
 
    printf("%s", output);
 
    return 0;
}