v #include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define FOR(i,a,b) for (auto i = (a); i <= (b); ++i)
#define NFOR(i,a,b) for(auto i = (a); i >= (b); --i)
#define all(x) (x).begin(), (x).end()
#define sz(x) int(x.size())
#define mp(i,a) make_pair(i,a)
#define pb(a) push_back(a)
#define bit(x,b) (x&(1LL<<b))
typedef int lli;
typedef pair <lli,lli> ii;
typedef pair <lli,ii> iii;
typedef vector <lli> vi;
int m=1000000007;
lli cal(lli p,lli n)
{
lli b=0,ans=1,a=n;
while((1LL<<b)<=p)
{
if(bit(p,b))
ans=(ans*a)%m;
a=(a*a)%m;
b++;
}
return(ans);
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int test=1;
cin>>test;
for(;test>0;--test)
{
lli n,p=131,c=0,l=0,la=0,r,ls=0,rs=0;
string s;
cin>>s;
n=s.size();
r=n-1;
while(l<=r)
{
ls=(ls+((s[l]-'a')*cal(l-la+1,p))%m)%m;
rs=(rs*p+((s[n-1-la-(l-la)]-'a')*p)%m)%m;
if(l!=r&&rs==ls)
{
r=n-1-la-(l-la)-1;
rs=0;
ls=0;
c+=2;
la=l+1;
l=la;
if(l==r)
c++;
}
else
{
r--;
l++;
if(l>=r)
c++;
}
if(l>=r)
{
break;
}
}
cout<<c<<endl;
}
return(0);
}
Compilation message
palindromic.cpp:1:3: error: stray '#' in program
v #include <bits/stdc++.h>
^
palindromic.cpp:1:1: error: 'v' does not name a type
v #include <bits/stdc++.h>
^
palindromic.cpp:14:9: error: 'pair' does not name a type
typedef pair <lli,lli> ii;
^~~~
palindromic.cpp:15:9: error: 'pair' does not name a type
typedef pair <lli,ii> iii;
^~~~
palindromic.cpp:16:9: error: 'vector' does not name a type
typedef vector <lli> vi;
^~~~~~
palindromic.cpp: In function 'int main()':
palindromic.cpp:32:3: error: 'ios_base' has not been declared
ios_base::sync_with_stdio(false);
^~~~~~~~
palindromic.cpp:33:3: error: 'cin' was not declared in this scope
cin.tie(NULL);
^~~
palindromic.cpp:33:3: note: suggested alternative: 'main'
cin.tie(NULL);
^~~
main
palindromic.cpp:33:11: error: 'NULL' was not declared in this scope
cin.tie(NULL);
^~~~
palindromic.cpp:39:5: error: 'string' was not declared in this scope
string s;
^~~~~~
palindromic.cpp:39:5: note: suggested alternative: 'struct'
string s;
^~~~~~
struct
palindromic.cpp:40:10: error: 's' was not declared in this scope
cin>>s;
^
palindromic.cpp:40:10: note: suggested alternative: 'rs'
cin>>s;
^
rs
palindromic.cpp:70:5: error: 'cout' was not declared in this scope
cout<<c<<endl;
^~~~
palindromic.cpp:70:14: error: 'endl' was not declared in this scope
cout<<c<<endl;
^~~~
palindromic.cpp:70:14: note: suggested alternative: 'enum'
cout<<c<<endl;
^~~~
enum
