Description
GZS has two strings s and t.
In each step, GZS can select arbitrary character c of s and insert any character d (d ≠ c) just after it.
GZS wants to convert s to t. But is it possible?
Input
There are multiple test cases. The first line of input contains an integer T, indicating the number of test cases. For each test case there are two strings s and t, one per line. 1 ≤ T ≤ 10^5 1 ≤ |s| ≤ |t| ≤ 10^5 All strings consist only of lowercase English letters. The size of each input file will be less than 5MB.
Output
For each test case, output "Yes" if GZS can convert s to t, otherwise output "No".
Sample Input 1
4 a b cat cats do do apple aapple
Sample Output 1
No Yes Yes No
题意:一开始读错题了,以为只能插一个,是可以插很多个,每个要满足插入的规则就可以了
思路:看长串中是否包含短串的所有字符,如果都有再判断前面有多少个相同的,如果短串的大于等于长串的,并且首字符一定要相同,就可以,否则就不可以,否则就说明插了重的
代码:
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<iostream>
#define MAX 100005
using namespace std;
char s1[MAX],s2[MAX];
int main() {
int T;
cin>>T;
for(int t=0; t<T; t++) {
scanf("%s",s1);
scanf("%s",s2);
int i;
i=0;
int len1=strlen(s1);
int len2=strlen(s2);
for(int j=0; i<len1&&j<len2; j++) {
if(s1[i]==s2[j]) {
i++;
}
}
if(i!=len1) {
printf("No\n");
} else {
int sum1=0,sum2=0;
for(int j=1; j<len1; j++) {
if(s1[j]==s1[j-1]) {
sum1++;
} else {
break;
}
}
for(int j=1; j<len2; j++) {
if(s2[j]==s2[j-1]) {
sum2++;
} else {
break;
}
}
if(s1[0]==s2[0]&&sum1>=sum2) {
printf("Yes\n");
} else {
printf("No\n");
}
}
}
return 0;
}
也可以参考大佬的思路及代码
链接:
https://blog.youkuaiyun.com/qq_42936517/article/details/85886959
本文探讨了一个字符串转换问题,即通过在指定位置插入不同字符的方式,尝试将一个字符串转换为另一个目标字符串。文章提供了一种解决方案,包括检查源字符串的所有字符是否包含在目标字符串中,以及比较两个字符串开头相同字符的数量。
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