33分求助

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdbool.h>
#include <assert.h>
#include <time.h>

typedef struct {
    unsigned long long* base;
    unsigned long long* top;
    unsigned long long stacksize;
    unsigned long long size;
}STACK;

STACK* s;

void f(char c[], unsigned long long x) {
    if (c[0] == 'p' && c[1] == 'u' && c[2] == 's' && c[3] == 'h') {
        *(s->top) = x;
        s->top++;
        s->size++;
        return;
    }
    if (c[0] == 'p' && c[1] == 'o' && c[2] == 'p') {
        if (s->top == s->base) {
            printf("Empty\n");
            return;
        }
        s->top--;
        s->size--;
        return;
    }
    if (c[0] == 'q' && c[1] == 'u' && c[2] == 'e' && c[3] == 'r' && c[4] == 'y') {
        if (s->top == s->base) {
            printf("Anguei!\n");
            return;
        }
        s->top--;
        unsigned long long ans = *(s->top);
        printf("%lld\n", ans);
        s->top++;
        return;
    }
    if (c[0] == 's' && c[1] == 'i' && c[2] == 'z' && c[3] == 'e') {
        printf("%d\n", s->size);
        return;
    }
}

int main()
{

    int T;
    scanf("%d", &T);
    while (T--) {
        s = (STACK*)malloc(sizeof(STACK));
        s->base = (unsigned long long*)malloc(1000010 * sizeof(unsigned long long));
        s->top = s->base;
        s->stacksize = 1000010;
        s->size = 0;

        int n;
        scanf("%d", &n);
        while (n--) {
            char c[10];
            unsigned long long x = 0;
            scanf("%s", c);
            if (c[0] == 'p' && c[1] == 'u' && c[2] == 's' && c[3] == 'h') {
                scanf("%lld", &x);
            }
            f(c, x);
        }

    }
    return 0;

}