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为什么是RE呢??

Posted by kikif at 2007-09-15 18:18:18 on Problem 1226
#include <iostream>
#include <fstream>
using namespace std;


int main(){
//	ifstream cin("data.txt");
	int testcase,tc;
	cin>>testcase;
	for(tc=1;tc<=testcase;tc++){
		int n,i,j,k;
		char a[150][1500];
		cin>>n;
		for(i=0;i<n;i++){
			cin>>a[i];
		//	cout<<a[i]<<endl;
		}
	//	cout<<endl;
		int res=0;
		int len=strlen(a[0]);

		bool search=false;
		for(i=len;i>0&&!search;i--){
			for(j=0;j<=len-i&&!search;j++){  //以j作为开始	
				char tmps[1500];
				int s=0;
				for(k=j;k<j+i;k++){
					tmps[s++]=a[0][k];
				}
				tmps[s]='\0';
			//	cout<<"tmps="<<tmps<<endl;

				int x,y;
				bool find=true;

				for(k=1;k<n&&find;k++){
					for(x=0;x<=strlen(a[k])-s;x++){
				//		cout<<a[k]<<" "<<x<<" "<<strlen(a[k])-1-x<<endl;
						int p1=0,p2=x;
						while(a[k][p2]==tmps[p1]){
							p2++;
							p1++;
							if(p1==s)break;
						}
						if(p1==s)break;
							
						p1=0;p2=strlen(a[k])-1-x;
						while(a[k][p2]==tmps[p1]){
							p1++;
							p2--;
							if(p1==s)break;
						}
						if(p1==s)break;
					}
					if(x==(strlen(a[k])-s+1)){
						find=false;
						break;
					}
				}
				if(k==n&&find){					
					cout<<i<<endl;
					search=true;
					break;
				}
			
			}
		}

	}
}

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