P6188help me

#include<bits/stdc++.h>
using namespace std;
int summax=0; 
int commax=0;//when  
bool noans=0;
inline void read(int &n){
    n=0; 
    char c=0; 
    int w=0;  
    while (!isdigit(c)) w|=c=='-',c=getchar();  
    while (isdigit(c)) n=n*10+(c^48),c=getchar();  
    if(w) n=-n;  
}

int main(){

    int n,a,b,c;
    //`cin>>n``````````````````````````````````````;
    read(n);
    for(int i=0;14*i<=n;i++){
        for(int j=0;7*i+4*j<=n;j++){//
            int k=(n-i*7-j*4)/3;
//            cout<<i<<" "<<j<<" "<<k<<endl;
            if(n==3*k+4*j+7*i&&k>=0){//
 //             cout<<i<<" "<<j<<" "<<k<<endl;
                int tmp1=min(min(i,j),k);
                if(commax<tmp1){//notice > or <
                    commax=tmp1;
//                  cout<<commax<<endl;
//                  cout<<i<<" "<<j<<" "<<k<<endl;
                    int tmp2=i+j+k;
                    if(summax<tmp2){
                        summax=tmp2;
//                      cout<<summax<<endl;
//                      cout<<i<<" "<<j<<" "<<k<<endl;
                        a=i;b=j;c=k;
                        noans=1;
                    } 
                }
//               a=i;b=j;c=k;//where?

            }
        }
    }
    if(noans){//
        //cout<<a<<" "<<b<<" "<<c;
        printf("%d %d %d\n",a,b,c);
    }else{//
        //cout<<"-1";//
        printf("-1\n");
    }//

    return 0;
}