#include <cstdio>
#include <iostream>
#include <algorithm>
#include <cstring>
#include <vector>
#include <set>
#include <map>
#include <cmath>
#include <list>
#include <ctime>
#include <sstream>
#include <queue>
#include <stack>
#include <bitset>
#include <unordered_set>
#include <unordered_map>
using namespace std;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef long long ll;
typedef unsigned long long ull;
typedef short int sint;
#define FOR(x, b, e) for(int x=(b); x<=(e); ++x)
#define FORD(x, b, e) for(int x=((int)(b))-1; x>=(e); --x)
#define REP(x, n) for(int x=0; x<(n); ++x)
#define ALL(c) c.begin(),c.end()
#define SIZE(x) ((int)((x).size()))
#define PB push_back
#define ST first
#define ND second
#define mp(x,y) make_pair(x,y)
#define DEBUG 1
#define debug(x) {if (DEBUG)cerr <<#x <<" = " <<x <<endl; }
#define debugv(x) {if (DEBUG) {cerr <<#x <<" = "; FOREACH(it, (x)) cerr <<*it <<", "; cout <<endl; }}
#define REMAX(a,b) (a)=max((a),(b));
#define REMIN(a,b) (a)=min((a),(b));
#define wez(n) int (n); scanf("%d",&(n));
#define wez2(n,m) int (n),(m); scanf("%d %d",&(n),&(m));
const int K = 3;
const ull mod = 1e9 + 7;
ull primes[K] = {
1e9 + 7,
1e9 + 13,
31,
};
struct Hash {
ull prime, odw, mn, sum;
Hash(){}
Hash(ull prime_): prime(prime_), odw(0), mn(1), sum(0) {
}
void addChar(char c) {
sum = sum + mn * (c - '0');
mn = mn * prime;
odw = odw * prime + (c - '0');
}
bool ok() {
return sum == odw;
}
} hashes[K];
const int M = 3;
ull smallPrimes[M] = {
31,
61,
37,
};
struct HashMod {
ull prime, odw, mn, sum;
HashMod(){}
HashMod(ull prime_): prime(prime_), odw(0), mn(1), sum(0) {
}
void addChar(char c) {
sum = (sum + mn * (c - '0')) % mod;
mn = (mn * prime) % mod;
odw = (odw * prime + (c - '0')) % mod;
}
bool ok() {
return sum == odw;
}
} hashesMod[M];
int main() {
int x;
cin >> x;
char c;
c = getchar(); // read newline
ull sum = 0, mn = 1;
ull odw = 0;
REP(i, K) hashes[i] = Hash(primes[i]);
REP(i, M) hashesMod[i] = HashMod(smallPrimes[i]);
while ((c = getchar()) != '\n') {
REP(i, K) {
hashes[i].addChar(c);
hashesMod[i].addChar(c);
}
}
REP(i, K) {
if (!hashes[i].ok()) {
printf("NIE\n");
return 0;
}
}
REP(i, M) {
if (!hashesMod[i].ok()) {
printf("NIE\n");
return 0;
}
}
printf("TAK\n");
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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | #include <cstdio> #include <iostream> #include <algorithm> #include <cstring> #include <vector> #include <set> #include <map> #include <cmath> #include <list> #include <ctime> #include <sstream> #include <queue> #include <stack> #include <bitset> #include <unordered_set> #include <unordered_map> using namespace std; typedef vector<int> vi; typedef pair<int,int> pii; typedef long long ll; typedef unsigned long long ull; typedef short int sint; #define FOR(x, b, e) for(int x=(b); x<=(e); ++x) #define FORD(x, b, e) for(int x=((int)(b))-1; x>=(e); --x) #define REP(x, n) for(int x=0; x<(n); ++x) #define ALL(c) c.begin(),c.end() #define SIZE(x) ((int)((x).size())) #define PB push_back #define ST first #define ND second #define mp(x,y) make_pair(x,y) #define DEBUG 1 #define debug(x) {if (DEBUG)cerr <<#x <<" = " <<x <<endl; } #define debugv(x) {if (DEBUG) {cerr <<#x <<" = "; FOREACH(it, (x)) cerr <<*it <<", "; cout <<endl; }} #define REMAX(a,b) (a)=max((a),(b)); #define REMIN(a,b) (a)=min((a),(b)); #define wez(n) int (n); scanf("%d",&(n)); #define wez2(n,m) int (n),(m); scanf("%d %d",&(n),&(m)); const int K = 3; const ull mod = 1e9 + 7; ull primes[K] = { 1e9 + 7, 1e9 + 13, 31, }; struct Hash { ull prime, odw, mn, sum; Hash(){} Hash(ull prime_): prime(prime_), odw(0), mn(1), sum(0) { } void addChar(char c) { sum = sum + mn * (c - '0'); mn = mn * prime; odw = odw * prime + (c - '0'); } bool ok() { return sum == odw; } } hashes[K]; const int M = 3; ull smallPrimes[M] = { 31, 61, 37, }; struct HashMod { ull prime, odw, mn, sum; HashMod(){} HashMod(ull prime_): prime(prime_), odw(0), mn(1), sum(0) { } void addChar(char c) { sum = (sum + mn * (c - '0')) % mod; mn = (mn * prime) % mod; odw = (odw * prime + (c - '0')) % mod; } bool ok() { return sum == odw; } } hashesMod[M]; int main() { int x; cin >> x; char c; c = getchar(); // read newline ull sum = 0, mn = 1; ull odw = 0; REP(i, K) hashes[i] = Hash(primes[i]); REP(i, M) hashesMod[i] = HashMod(smallPrimes[i]); while ((c = getchar()) != '\n') { REP(i, K) { hashes[i].addChar(c); hashesMod[i].addChar(c); } } REP(i, K) { if (!hashes[i].ok()) { printf("NIE\n"); return 0; } } REP(i, M) { if (!hashesMod[i].ok()) { printf("NIE\n"); return 0; } } printf("TAK\n"); return 0; } |
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