Ultraviolet A 10340-all in all

Link:

Http://uva.onlinejudge.org/index.php? Option = com_onlinejudge & Itemid = 8 & category = 113 & page = show_problem & problem = 1281

Original question:

You have devised a new encryption technique which encodes a message by inserting between its characters randomly generated strings in a clever way. because of pending patent issues we will not discuss in detail how the strings are generated and inserted
Into the original message. To validate your method, however, it is necessary to write a program that checks if the message is really encoded in the final string.

Given two stringsSAndT, You have to decide whetherSIs a subsequenceT, I. e. If you can remove characters fromTSuch that the concatenation of the remaining characters isS.

Input Specification

The input contains several testcases. Each is specified by two stringsS, TOf alphanumeric ASCII characters separated by whitespace. input is terminated by EOF.

Output Specification

For each test case output, ifSIs a subsequenceT.

Sample Input

sequence subsequence

person compression

VERDI vivaVittorioEmanueleReDiItalia

caseDoesMatter CaseDoesMatter

Sample output

Yes

No

Yes

No

Analysis and Summary:To determine whether a string is a substring of another string.
Code:

/* *  UVa: 10340 - All in All *  Time: 0.008s *  Author: D_Double */#include<iostream>#include<cstdio>#include<cstring>using namespace std;char str1[1000000], str2[1000000];bool judge(){    int pos=0, i;    for(i=0; i<strlen(str1); ++i){        bool flag=false;        while(pos < strlen(str2)){            if(str2[pos]==str1[i])                break;            ++pos;        }        if(pos==strlen(str2)) return false;        ++pos;    }    if(i==strlen(str1)) return true;    return false;}int main(){    while(scanf("%s %s",str1,str2)!=EOF){        if(judge()) printf("Yes\n");        else printf("No\n");    }    return 0;}

-- The meaning of life is to give it meaning.
 

  Original
  Http://blog.csdn.net/shuangde800
  , By d_double (reprinted, please mark)