HDU1022--Train Problem I HDU(136)
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【题目】点击打开链接
【题解】简单的栈应用,看到网上一堆一堆的STL就烦,直接用多个数组做一下。
#pragma warning(disable:4786)#include<iostream>#include<algorithm>#include<cmath>#include<stdio.h>#include<time.h>#include<stdlib.h>#include<queue>#include<set>#include<vector>#include<string>#include<ctime>#include<string.h>using namespace std;#define pi acos(-1.0)//#define LL __int64typedef long long LL;#define INF 0x7fffffffffffffff#define bug puts("hear!")#define inf 0x7fffffff#define eps 1e-10#define FRE freopen("in.txt","r",stdin)#define E exp(1.0)#define mod 1000000007int main(){ int n,i,j,k,t,r[23],stack[13]; char si[13],so[13]; while(scanf("%d",&n)!=EOF) { getchar(); memset(r,0,sizeof(r)); memset(stack,0,sizeof(stack)); scanf("%s%s",si,so); stack[1]=si[0];r[0]=1; for(k=t=j=1,i=0;so[i]!='\0';i++) { while(t<n) { if(j>0&&stack[j]==so[i]) //出栈 { j--; r[k++]=2;//记录进出栈的情况 break; } stack[++j]=si[t++];//进栈 r[k++]=1; //记录进出栈的情况 } printf("%d\n",j); if(stack[j]==so[i])//出栈 { j--; r[k++]=2; //记录进出栈的情况 } } n=n<<1; if(k<n) printf("No.\nFINISH\n"); else { printf("Yes.\n"); for(i=0;i<k;i++) switch(r[i]) { case 1:printf("in\n");break; case 2:printf("out\n");break; } printf("FINISH\n"); } } return 0;}
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