UVa 514 数据结构栈

背景：1A

思路：栈模拟

我的代码：

#include <set>
#include <stack>
#include <queue>
#include <vector>
#include <cstdio>
#include <map>
#include <cstring>
#include <cstdlib>
#include <iostream>
#include <algorithm>
#define LL long long int
using namespace std;
const int M=1009,INF=0x3fffffff;
int n,train[M];

int main(void){
log:while(scanf("%d",&n),n){
        while(true){
            stack<int> s1,s2;
            bool ans=false;
            for(int i=1;i <= n;i++){
                scanf("%d",&train[i]);
                if(!train[i]){
                    printf("\n");
                    goto log;
                }
                s1.push(n-i+1);
            }
            for(int i=1;;i++){
                if(i > n){ans=true;break;}
                if(!s2.empty() && s2.top() == train[i]){
                    s2.pop();
                }else if(!s1.empty() && train[i] >= s1.top()){
                    while(true){
                        if(!s1.empty() && s1.top() == train[i]){
                            s1.pop();
                            break;
                        }
                        int temp=s1.top();
                        s1.pop();
                        s2.push(temp);
                    }
                }else break;
            }
            if(ans) printf("Yes\n");
            else printf("No\n");
        }
    }
    return 0;
}

UVa 514 数据结构栈

原文：http://blog.csdn.net/jibancanyang/article/details/44923859