Anaf

#include <bits/stdc++.h>
using namespace std;
unsigned int v[10002];

void adunare (unsigned int a){
    int i;
    v[1]+=a;
    i=1;
    while(v[i]>=10){
        v[i+1]+=v[i]/10;;
        v[i]%=10;
        if(i==v[0])
            v[0]++;
        i++;
    }
}
void inmultire (unsigned int a){
    int i;
    for(i=1;i<=v[0];i++)
        v[i]*=a;
    for(i=1;i<=v[0];i++){
        if(v[i]>=10){
            v[i+1]+=v[i]/10;;
            v[i]%=10;
            if(i==v[0])
                v[0]++;
        }
    }
}
void impartire(unsigned int a)
{
    int rest,i;
    rest=0;
    for(i=v[0];i>=1;i--){
        v[i]+=rest;
        rest=v[i]%a;
        v[i]/=a;
        rest=rest*10;
    }
    while (v[0]>1 && 0==v[v[0]])
        v[0]--;
}
int rest(unsigned int a)
{
    int rest,i;
    rest=0;
    for(i=v[0];i>=1;i--){
        v[i]+=rest;
        rest=v[i]%a;
        v[i]/=a;
        rest=rest*10;
    }
    while (v[0]>1 && 0==v[v[0]])
        v[0]--;
    return rest/10;
}
int main()
{
    ifstream cin("anaf.in");
    ofstream cout("anaf.out");
    unsigned int a,n,i,j;
    char cer;
    string s;
    cin>>s;

    reverse(s.begin(),s.end());
    v[0]=s.size();
    for(i=1;i<=s.size();i++)
        v[i]=s[i-1]-'0';
    cin>>n;
    for(i=0;i<n;i++){
        cin>>cer>>a;
        if(cer=='+'){
            adunare(a);
        }else if(cer=='*'){
            inmultire(a);
        }else if(cer=='/'){
            impartire(a);
        }else if(cer=='%'){
            a=rest(a);

            v[0]=0;
            if(a==0){
                v[0]=1;v[1]=0;
            }
            while(a>0){
                v[0]++;
                v[v[0]]=a%10;
                a/=10;
            }
        }

    }
    for(j=v[0];j>0;j--)
        cout<<v[j];
    return 0;
}