Pretty Poem
Poetry is a form of literature that uses aesthetic and rhythmic qualities of language. There are many famous poets in the contemporary era. It is said that a few ACM-ICPC contestants can even write poetic code. Some poems has a strict rhyme scheme like "ABABA" or "ABABCAB". For example, "niconiconi" is composed of a rhyme scheme "ABABA" with A = "ni" and B = "co".
More technically, we call a poem pretty if it can be decomposed into one of the following rhyme scheme: "ABABA" or "ABABCAB". The symbol A, B and C are different continuous non-empty substrings of the poem. By the way, punctuation characters should be ignored when considering the rhyme scheme.
You are given a line of poem, please determine whether it is pretty or not.
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 is a line of poem S (1 <= length(S) <= 50). S will only contains alphabet characters or punctuation characters.
Output
For each test case, output "Yes" if the poem is pretty, or "No" if not.
Sample Input
3
niconiconi~
pettan,pettan,tsurupettan
wafuwafu
Sample Output
Yes
Yes
No
#include<iostream>
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>
#include<stack>
#include<queue>
#include<set>
#include<map>
#include<cmath>
#include<vector>
#include<limits.h>
#include<algorithm>
#define LL long long
#define mod 1e9 + 7 using namespace std; const int M = ; char a[M];
char s[M];
char A[M];
char B[M];
char C[M]; int main()
{
int t;
cin >> t;
getchar();
while( t-- )
{
gets(s);
int temp = ;
memset(a,'\0',sizeof(a));
for(int i = ; i < strlen(s); ++i)
if((s[i] >= 'a' && s[i] <= 'z') || (s[i] >= 'A' && s[i] <= 'Z'))
a[temp++] = s[i];
int len = strlen(a);
int ans = ;
for(int i = ; i < ; ++i)
{
for(int j = ; j < ; ++j)
{
if( * i + j * != len)
continue;
memset(A,'\0',sizeof(A));
memset(B,'\0',sizeof(B));
memset(C,'\0',sizeof(C));
strncpy(A,a,i);
strncpy(B,a + i + j,i);
strncpy(C,a + * i + * j,i);
if(strcmp(A,B) == && strcmp(A,C) == && strcmp(B,C) == )
{
memset(A,'\0',sizeof(A));
memset(B,'\0',sizeof(B));
strncpy(A,a + i,j);
strncpy(B,a + * i + j,j);
if(strcmp(A,B) == && strcmp(A,C) != )
{
ans = ;
break;
}
}
}
if(ans)
break;
}
for(int i = ; i < ; ++i)
{
if( * i >= len)
break;
memset(A,'\0',sizeof(A));
memset(B,'\0',sizeof(B));
memset(C,'\0',sizeof(C));
strncpy(A,a,i);
strncpy(B,a + i,i);
strncpy(C,a + len - i,i);
if(strcmp(A,B) == && strcmp(A,C) == && strcmp(B,C) == )
{
for(int j = ; j < i; ++j)
{
memset(A,'\0',sizeof(A));
memset(B,'\0',sizeof(B));
memset(C,'\0',sizeof(C));
strncpy(A,a,j);
strncpy(B,a + j,i - j);
strncpy(C,a + * i,len - * i);
if(strcmp(A,B) != && strcmp(A,C) != && strcmp(B,C) != )
{
ans = ;
break;
}
}
}
if(ans)
break;
}
if(ans)
puts("Yes");
else
puts("No");
}
return ;
}
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