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Cod sursa(job #210816)
#include<fstream.h>
#include<string.h>
#include<stdlib.h>
#include<conio.h>
void main()
{
ifstream f("adunare.in");
char a[25],b[25];
int c[25]={0},d[25]={0},s[26]={0};
f>>a;
f>>b;
f.close();
int n=strlen(a);
for(int i=0;i<n;i++)
c[i+1]=a[i]-'0';
int m=strlen(b);
for(i=0;i<m;i++)
d[i+1]=b[i]-'0';
int max;
if(n>m)
{
max=n;
for(i=m;i>=1;i--)
{
int aux=d[i];
d[i]=d[i+n-m];
d[i+n-m]=aux;
}
}
else {
max=m;
for(i=n;i>=1;i--)
{
int aux=c[i];
c[i]=c[i+m-n];
c[i+m-n]=aux;
}
}
for(i=max;i>=1;i--)
{
s[i+1]=s[i+1]+c[i]+d[i];
if(s[i+1]>9)
{
s[i]=1;
s[i+1]=s[i+1]%10;
}
}
ofstream g("adunare.out");
if(s[1]==0)
for(i=1;i<=max;i++)
g<<s[i+1];
else
for(i=1;i<=max+1;i++)
g<<s[i];
g.close();
}