online_judge_1108

来源：互联网发布：linux下关闭tomcat 编辑：程序博客网时间：2024/05/16 18:22

#include <stdio.h>#include <stdlib.h>int main(){    int n=1,i,top;    int a[10001];    char ch[10];    while(n!=0)    {        scanf("%d",&n);        if(n<=0||n>10000)            continue;        top=0;        for(i=0;i<n;i++)        {            getchar();            scanf("%s",ch);            if(ch[0]=='P')                scanf("%d",&a[top++]);            else if(ch[0]=='O'&&top>0)                top--;            else if(ch[0]=='A')            {                if(top<=0) printf("E\n");                else printf("%d\n",a[top-1]);            }        }        printf("\n");    }    return 0;}

这代码可以正常提交！

#include <stdio.h>#include <stdlib.h>int main(){    int n=1,i,top;    int a[10001];    char ch;    while(n!=0)    {        scanf("%d",&n);        if(n<=0||n>10000)            continue;        top=0;        for(i=0;i<n;i++)        {            getchar();            scanf("%c",&ch);            if(ch=='P')                scanf("%d",&a[top++]);            else if(ch=='O'&&top>0)                top--;            else if(ch=='A')            {                if(top<=0) printf("E\n");                else printf("%d\n",a[top-1]);            }        }        printf("\n");    }    return 0;}

这代码提交就会出现超时！到底为什么？

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