PAT 甲级 1040 Longest Symmetric String (25 分)
2019-04-10 22:56
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这大概是做的最顺的一道题了…
8分钟码完,一遍过
大概是因为题目太简单了吧
#includ 4000 e<iostream> #include<string> using namespace std; bool issym(string a) { for(int i=0;i<=a.size();i++) { if(a[i]!=a[a.size()-i-1])return false; } return true; } int main() { string a; int i,j; getline(cin,a); for(i=a.size();i>=1;i--) { for(j=1;j<=a.size()-i+1;j++) { if(issym(a.substr(j-1,i))) { cout<<i; return 0; } } } return 0; }
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