Issue understanding the Stack Frame example in the slides

Cyber Security Penetration Testing Professional
1

Hello community,

Can someone help me out understand in simpler words, the Stack Frame example using the code given in the slides shown below:

void functest(int a, int b, int c) {
int test1 = 55;
int test2 = 56;
}
int main(int argc, char *argv[]) {
int x = 11;
int z = 12;
int y = 13;
functest(30, 31, 32);
return 0;
}

Thanks.