C语言 帮忙改下栈,补充完整。

发布网友 发布时间：2023-12-19 20:57

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共2个回答

热心网友 时间：2024-07-11 13:16

看看这样行不行（增加了显示栈的功能）：
#include <stdio.h>

struct stack {
int arr[10];
size_t amount;
};

typedef struct stack stack_t;

int push(stack_t *stack, int s);
int pop(stack_t *stack, int *s);
void display(stack_t *stack);

int main(int argc, char *argv[]) {
stack_t stack;
int cmd, x, f;
stack.amount = 0;
while(1){
printf("\t0 pop \t1 push \t2 disp \t3 Exit\n\n");
printf("\tinput a command:");
cmd=getchar();
if(cmd=='3') break;
switch(cmd){
case '0':
f=pop(&stack, &x);
if(f)
printf("pop Error.\n");
else
printf("x=%d\n",x);
break;
case '1':
printf("x=?");
scanf("%d", &x);
f=push(&stack, x);
if(f)
printf("push Error.\n");
break;
case '2':
display(&stack);
break;
}
printf("Press any key to continue ... ");
getchar();
getchar();
}
}

int push(stack_t *stack, int s) {
if(stack->amount == 10) {
return -1;
}

stack->arr[stack->amount] = s;
stack->amount++;

return 0;
}

int pop(stack_t *stack, int *s) {
if(stack->amount == 0) {
return -1;
}

*s = stack->arr[stack->amount - 1];
stack->amount--;

return 0;
}
void display(stack_t *stack){
int i;
for(i=stack->amount-1; i>=0; i--)
printf("%d\n", stack->arr[i]);
}

热心网友 时间：2024-07-11 13:16

int main(int argc, char *argv[]) {

stack_t stack;
char s[11];
int flag, index = 0, result;

stack.amount = 0;

scanf("%s", s);

while(1){
scanf("%d", &flag);
if(flag == 1){
if(push(&stack, (int)(s[index]))){
printf("stack is full!\n");
continue;
}
index++;
printf("push %c to stack\n", s[index-1]);
}
else if(flag == 0){
if(pop(&stack, &result)){
printf("stack is empty!\n");
continue;
}
index--;
printf("pop result is %c\n", result);
}
else{
printf("invalid number!\n");
break;
}
}

return 0;
}