// 2020 Free ram install
#include <bits/stdc++.h>
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
/*
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
//*/
std::mt19937 rng(std::chrono::system_clock::now().time_since_epoch().count());
using namespace std;
#define IO ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define y1 asjfkgasj
#define all(v) (v).begin(),(v).end()
#define pb push_back
#define F first
#define S second
#define endl '\n'
#define flsh '\n'<<flush
#define mp make_pair
#define mt make_tuple
#define sz size
#define pii pair<int,int>
#define pll pair<long long,long long>
#define vi vector<int>
#define vll vector<long long>
#define deb(x) cout<< #x <<'='<< x <<flsh;
#define iii int,int,int
#define ull unsigned long long
#define intt long long
#define ld long double
#define dd double
#define OK cout<<"OK\n"<<flsh;
#define setpre(x) fixed<<setprecision(x)
#define mmset(x,y) memset(x,y,sizeof(x))
unordered_map<string,int>m;
string a,s;
int l,r,n,ans;
main()
{
IO;
cin>>a;
n=a.length();
for(int i=0;i<n;i++)
{
s="";
l=r=i;
while(0<=l and r<n and a[r]==a[l])
{
s+=a[l];
l--;
r++;
m[s]+=s.length()*2-1;
ans=max(ans,m[s]);
//deb(s);
}
}
m.clear();
for(int i=1;i<n;i++)
{
s="";
l=r=i;
l--;
while(0<=l and r<n and a[r]==a[l])
{
s+=a[l];
l--;
r++;
m[s]+=s.length()*2;
ans=max(ans,m[s]);
//deb(s);
}
}
cout<<ans;
return 0;
}
Compilation message
palindrome.cpp:7:1: warning: "/*" within comment [-Wcomment]
/*
palindrome.cpp:43:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main()
^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
420 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
348 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
404 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
57 ms |
720 KB |
Output is correct |
2 |
Correct |
20 ms |
688 KB |
Output is correct |
3 |
Correct |
107 ms |
584 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
106 ms |
632 KB |
Output is correct |
6 |
Correct |
104 ms |
504 KB |
Output is correct |
7 |
Correct |
3 ms |
504 KB |
Output is correct |
8 |
Correct |
58 ms |
632 KB |
Output is correct |
9 |
Correct |
4 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
3 ms |
508 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1074 ms |
4812 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1077 ms |
4872 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1065 ms |
5260 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |