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10106.cpp
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89 lines (75 loc) · 1.08 KB
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
/* Product - 10106 */
int n1[251],n2[251],vet[501];
int converte(char *num1,char *num2,int t1,int t2){
char aux[2];
int i;
for(i=0;i<t1;i++)
{
aux[0]=num1[i];
n1[i]=atoi(aux);
}
for(i=0;i<t2;i++)
{
aux[0]=num2[i];
n2[i]=atoi(aux);
}
return 0;
}
int inicializa(){
int i;
for(i=0;i<251;i++)
{
n1[i]=1;
n2[i]=1;
}
for(i=0;i<501;i++)
vet[i]=0;
return 0;
}
int multiplica (int t1,int t2){
int i,j,k,aux=0;
for(i=t2-1;i>=0;i--)
{
k=aux;
for(j=t1-1;j>=0;j--)
{
vet[k]+=n2[i]*n1[j];
k++;
}
aux++;
}
for(i=0;i<k;i++)
if(vet[i]>=10)
{
vet[i+1]+=vet[i]/10;
vet[i]=vet[i]%10;
}
return k;
}
main(){
int i,t,t1,t2;
char num1[252],num2[252];
while(scanf("%s %s",num1,num2)!=EOF)
{
if(num1[0]=='0' || num2[0]=='0')
printf("0\n");
else
{
inicializa();
t1=strlen(num1);
t2=strlen(num2);
converte(num1,num2,t1,t2);
t=multiplica(t1,t2);
for(i=t;i>=0;i--)
{
if(i==t && vet[i]==0)
continue;
printf("%d",vet[i]);
}
printf("\n");
}
}
}