#include <iostream>
using namespace std;
typedef unsigned long long ULL;
const unsigned P=1000000009, LPodst=3, Podst[LPodst]={827476289, 927772311, 118238327};
int main()
{
ios_base::sync_with_stdio(false);
ULL bPodst[LPodst];
for (int i=0; i<LPodst; ++i)
bPodst[i]=1;
ULL wart1[LPodst]={}, wart2[LPodst]={};
int n;
cin>>n;
char a;
while (cin>>a)
{
for (int i=0; i<LPodst; ++i)
{
wart1[i]=(wart1[i]*Podst[i]+a)%P;
wart2[i]=(wart2[i]+a*bPodst[i])%P;
bPodst[i]=(Podst[i]*bPodst[i])%P;
}
}
for (int i=0; i<LPodst; ++i)
if (wart1[i]!=wart2[i])
{
cout<<"NIE"<<endl;
return 0;
}
cout<<"TAK"<<endl;
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | #include <iostream> using namespace std; typedef unsigned long long ULL; const unsigned P=1000000009, LPodst=3, Podst[LPodst]={827476289, 927772311, 118238327}; int main() { ios_base::sync_with_stdio(false); ULL bPodst[LPodst]; for (int i=0; i<LPodst; ++i) bPodst[i]=1; ULL wart1[LPodst]={}, wart2[LPodst]={}; int n; cin>>n; char a; while (cin>>a) { for (int i=0; i<LPodst; ++i) { wart1[i]=(wart1[i]*Podst[i]+a)%P; wart2[i]=(wart2[i]+a*bPodst[i])%P; bPodst[i]=(Podst[i]*bPodst[i])%P; } } for (int i=0; i<LPodst; ++i) if (wart1[i]!=wart2[i]) { cout<<"NIE"<<endl; return 0; } cout<<"TAK"<<endl; return 0; } |
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