#include <cstdio> using namespace std; const int lim = 2; const long long P[] = {241, 509, 83, 757, 37}; const long long MOD[] = {1059489677, 1594898869, 759489431, 2244895909, 359489527, }; long long hasz1[6], hasz2[6], POT[6]; char c; int n; int main() { scanf("%d ",&n); for(int i = 0; i < lim; i++) POT[i] = 1; c = getchar_unlocked(); while(c >= 'a' && c <= 'z') { //c = 'a'; //if(c == '.') break; for(int i = 0; i < lim; i++) { hasz1[i] = (hasz1[i] + (c-'a'+1)*POT[i])%MOD[i]; hasz2[i] = (hasz2[i] * P[i] + (c-'a'+1)) % MOD[i]; POT[i] *= P[i]; POT[i] %= MOD[i]; } c = getchar_unlocked(); } bool ok = true; for(int i = 0; i < lim; i++) if(hasz1[i] != hasz2[i]) ok = false; if(ok) printf("TAK\n"); else printf("NIE\n"); }
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 | #include <cstdio> using namespace std; const int lim = 2; const long long P[] = {241, 509, 83, 757, 37}; const long long MOD[] = {1059489677, 1594898869, 759489431, 2244895909, 359489527, }; long long hasz1[6], hasz2[6], POT[6]; char c; int n; int main() { scanf("%d ",&n); for(int i = 0; i < lim; i++) POT[i] = 1; c = getchar_unlocked(); while(c >= 'a' && c <= 'z') { //c = 'a'; //if(c == '.') break; for(int i = 0; i < lim; i++) { hasz1[i] = (hasz1[i] + (c-'a'+1)*POT[i])%MOD[i]; hasz2[i] = (hasz2[i] * P[i] + (c-'a'+1)) % MOD[i]; POT[i] *= P[i]; POT[i] %= MOD[i]; } c = getchar_unlocked(); } bool ok = true; for(int i = 0; i < lim; i++) if(hasz1[i] != hasz2[i]) ok = false; if(ok) printf("TAK\n"); else printf("NIE\n"); } |