code. compile. run. debug. share.
#include <stdio.h>
unsigned int pot(unsigned int a,unsigned int e,unsigned int d)
{
unsigned int p=1,tmp;
int i;
tmp=a; /* tmp é a^1 */
for(i=0;i<32;i++)
{
printf("\n p=%d \n %d^(2^%d)=%d ",p,a,i,tmp);
if((e >> i) & 1) /* i-esimo bit de e */
{
printf("p=p*%d (mod %d)",tmp,d);
p=(p*tmp)%d; /* multiplica p pela potencia de a que está em tmp */
}
else {printf("p=p*1");}
tmp=tmp*tmp; tmp=tmp%d; /* tmp era a^{2^{i}} será a^{2^{i+1}} (em Zd)*/
printf("=%d ",p);
}
return(p);
}
int main()
{
unsigned int a=2,e=127,d=10000;
printf("\n\n %d^%d (mod %d) =%d \n",a,e,d,pot(a,e,d));
return 0;
}
Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
| # | Function | File:Line |
|---|
| Variable | Value |
|---|
| Register | Value |
|---|
| Expression | Value |
|---|
| # | Description |
|---|