まあ、タイトルはすでに私が必要としているものを言っています。ループを使ってみたけどうまくいかなかったので、助けに来ました!
これが私のコードです:
#include <stdio.h>
#include <stdlib.h>
int main()
{
char word[31], word2[31];
int size1, size2;
int i, j, k; // control
int count = 0;
printf ("\nInput the first word");
scanf ("%s", word);
printf ("\nInput the second word: ");
scanf (" %s", word2);
// I tried to make a loop through the first string and if it matches a letter, it would loop through the others (if they are equal, we have a substring), but failed to put it on the `for` loop
printf ("'%s' appears %d times within '%s'", word2, count, word);
return 0;
}