Submission #113320

#	Time	Username	Problem	Language	Result	Execution time	Memory
113320		Runtime_error_	Palindromes (APIO14_palindrome)	C++14	23 / 100	281 ms	17524 KiB

palindrome

#include <bits/stdc++.h>
using namespace std;
const int inf=2e3+9;
int n,ans;
string s;
int pal[inf][inf];
map<string,int> mp;

int main(){

    cin>>s;
    n=s.size();
    s=" "+s;

    for(int i=1;i<=n;i++)
        pal[i][i]=1,pal[i][i+1]=(i<n && s[i]==s[i+1]);

    for(int len=3;len<=n;len++)
        for(int i=1;i<=n-len+1;i++)
            pal[i][i+len-1]=(pal[i+1][i+len-2] & s[i]==s[i+len-1]);

    for(int i=1;i<=n;i++){
        string temp="";
        for(int j=i;j<=n;j++){
            temp+=s[j];
            if(pal[i][j])
               mp[temp]++,ans=max(ans,mp[temp]*(j-i+1));
        }
    }
    cout<<ans<<endl;
}

Compilation message (stderr)

palindrome.cpp: In function 'int main()':
palindrome.cpp:20:54: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
             pal[i][i+len-1]=(pal[i+1][i+len-2] & s[i]==s[i+len-1]);

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 0 / 24
• Subtask 4: 0 / 26
• Subtask 5: 0 / 27