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29 lines
448 B
C
29 lines
448 B
C
#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include "defs.h"
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#include "gates.h"
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#include "omuln.h"
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#include "qureg.h"
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void
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quantum_exp_mod_n(int N, int x, int width_input, int width, quantum_reg *reg)
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{
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int i, j, f;
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quantum_sigma_x(2*width+2, reg);
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for (i=1; i<=width_input;i++){
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f=x%N; //compute
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for (j=1;j<i;j++)
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{
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f*=f; //x^2^(i-1)
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f= f%N;
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}
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mul_mod_n(N,f,3*width+1+i, width, reg);
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}
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}
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