Train Problem I

问题陈述：

　　杭州电子科技大学HANGZHOU DIANZI UNIVERSITY Online Judge Problem - 1022 

问题解析：

　　栈(stack)的简单应用

代码详解：　　

#include <iostream>
#include <cstdio>
#include <stack>
#include <cstring>

using namespace std;

stack<int> s;

int flag[100];

int main()
{
    int n, i, j, k;
    char o1[20], o2[20];
    while(~scanf("%d %s%s", &n, o1, o2)){
        while(!s.empty()){
            s.pop();
        }
        memset(flag, -1, sizeof(flag));
        j = k = 0;
        for(i=0; i<n; i++) {
            s.push(o1[i]);
            flag[k++] = 1;
            while(!s.empty() && s.top()==o2[j]) {
                s.pop();
                flag[k++] = 0;
                j++;
            }
        }
        if(j == n) {
            cout << "Yes." <<endl;
            for(i=0; i<k; i++) {
                if(flag[i]) {
                    cout << "in" <<endl;
                }else {
                    cout << "out" << endl;
                }
            }
        }else {
            cout << "No." << endl;
        }
        cout << "FINISH" << endl;
    }
    return 0;
}

参考博客：http://blog.csdn.net/lyhvoyage/article/details/18505997

转载请注明出处：http://www.cnblogs.com/michaelwong/p/4315668.html