20 lines
338 B
C
20 lines
338 B
C
#include <stdio.h>
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#include <stdlib.h>
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double fastpow(double a, long long n){
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if(a == 1 || n == 0) return 1;
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double tmp = fastpow(a, n / 2);
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double ans = tmp * tmp;
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if(n % 2 == 1) ans *= a;
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return ans;
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}
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int main(){
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double a;
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long long n;
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scanf("%lf %lld", &a, &n);
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printf("%.8lf \n", fastpow(a, n));
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return 0;
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}
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