[컴퓨터개론및실습] 5주차

#include<stdio.h>

#include<string.h>

char num1[65],num2[65],num3[65];

int main(void) {

bool overflow=false;

int i,nam=0;

unsigned __int64 A,B,a,b,C=0;

scanf("%I64d %I64d",&A,&B);

a=A,b=B;

for(i=63;i>=0;i--) {

num1[i]=a%2+'0';

num2[i]=b%2+'0';

nam=a%2+b%2+nam;

if(nam==2) {

if(i==0)

overflow=true;

num3[i]='0';

nam/=2;

}

else {

num3[i]=nam+'0';

nam=0;

}

a/=2;

b/=2;

}

nam=1;

for(i=63;i>=0;i--) {

C+=(num3[i]-'0')*nam;

nam*=2;

}

num1[64]=num2[64]='\0';

printf(" %s=%I64d\n",num1,A);

printf("+ %s=%I64d\n ",num2,B);

if(overflow) printf("OVERFLOW!");

else {

for(i=1;i<=64;i++)printf("-");

printf("\n %s=%I64d",num3,C);

}

return 0;

}