13 lines
233 B
C++
13 lines
233 B
C++
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#include <Rcpp.h>
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using namespace Rcpp;
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// [[Rcpp::export]]
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double piSugar(const int N) {
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NumericVector x = runif(N);
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NumericVector y = runif(N);
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NumericVector d = sqrt(x*x + y*y);
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return 4.0 * sum(d < 1.0) / N;
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}
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