#include <stdio.h>
#include <stdint.h>
#include <string.h>
#define MAX 10
void process_stack(int n) {
// Your logic here
int stack[MAX];
int top = -1;
char operation[10];
int value;
for(int i = 0; i < n; i++) {
scanf("%s", operation);
if(strcmp(operation, "push") == 0) {
scanf("%d", &value);
// Check for overflow
if(top >= MAX - 1) {
printf("Stack Overflow\n");
} else {
// Push the value
top++;
stack[top] = value;
}
}
else if(strcmp(operation, "pop") == 0) {
// Check for underflow
if(top < 0) {
printf("Stack Underflow\n");
} else {
// Pop and print the value
printf("%d\n", stack[top]);
top--;
}
}
}
}
int main() {
int n;
scanf("%d", &n);
getchar(); // Consume newline after number
process_stack(n);
return 0;
}
Input
5 push 10 push 20 pop pop pop
Expected Output
20 10 Stack Underflow