check if string in string c
#include <stdio.h>
#include <string.h>
int main() {
char mainString[100], subString[50];
printf("Enter the main string: ");
fgets(mainString, sizeof(mainString), stdin);
printf("Enter the substring to check: ");
fgets(subString, sizeof(subString), stdin);
if (strstr(mainString, subString) != NULL)
printf("Substring found in the main string.\n");
else
printf("Substring not found in the main string.\n");
return 0;
}