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Cod sursa(job #710548)
#include <stdio.h>
#include <string.h>
#define MOD 1999999973
long mypowrec(long N, long P) {
if (P <= 0)
return 1;
if (P == 1)
return N % MOD;
if (P % 2) {
long aux = mypowrec(N, (P - 1) / 2) % MOD;
return (P * aux * aux * 1LL) % MOD;
}
long aux = mypowrec(N, P / 2) % MOD;
return (aux * aux * 1LL) % MOD;
}
int main(int argc, char **argv) {
long N, P;
freopen("lgput.in", "r", stdin);
freopen("lgput.out", "w", stdout);
scanf("%ld %ld", &N, &P);
printf("%ld %ld\n", N, P);
printf("%ld", mypowrec(N, P));
return 0;
}