lcthw/ex10.c at master · AliNisarAhmed/lcthw

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#include <stdio.h>

int main(int argc, char *argv[]) {

if (argc < 2) {

printf("ERROR: you need one argument\n");

556F return 1;

}

int i = 0;

int j = 0;

char letter;

for (j = 1; j < argc; j++) {

for (i = 0, letter = argv[j][i]; letter != '\0'; i++, letter = argv[j][i]) {

if (letter >= 65 && letter <= 90) {

letter += 32;

}

switch (letter) {

case 'a':

printf("%d: 'A'\n", i);

break;

case 'e':

printf("%d: 'E'\n", i);

break;

case 'i':

printf("%d, 'I'\n", i);

break;

case 'o':

printf("%d, 'O'\n", i);

break;

case 'u':

printf("%d, 'U'\n", i);

break;

default:

printf("%d: %c is not a vowel\n", i, letter);

break;

}

return 0;

}