Print First Letter of Each Word

1#include <stdio.h>
2#include <ctype.h>
3
4int main() {
5    char str[] = "Hello World Programming";
6    
7    printf("String: %s\n", str);
8    printf("First letters: ");
9    
10    // First character is always first letter
11    if (str[0] != ' ') {
12        printf("%c", toupper(str[0]));
13    }
14    
15    // Find first letter after each space
16    for (int i = 1; str[i]; i++) {
17        if (str[i - 1] == ' ' && str[i] != ' ') {
18            printf("%c", toupper(str[i]));
19        }
20    }
21    printf("\n");
22    
23    return 0;
24}