little problem

[sgameara]

Hello,

I have a little problem with this code. It does not work properly. If I type 0's as my input for each element of an array, the output is quite weird. I expect that each iteration should validate these values: 1,1,1,2,2,2,3,3,3,4,4,4; when the value of the counter z is more than 2 i want to see only 1,2,3,4 for each element. This works fine for the first 3 elements but later on some values disappear.

Could it be that a compiler cannot digest this many "for loops"?

  #include <iostream>
using namespace std;

int main()
{int m,x,y,z,i,l[4][4];

z=0;
for(x=0; x<=3; x++){for(y=0;y<=3;y++){cin >> l[x][y];};};
for(x=0; x<=3; x++){for(y=0;y<=3;y++){cout << l[x][y] << ' ';}cout<<"\n";};
for(x=0; x<=3; x++){for(y=0;y<=3;y++){if(l[x][y]==0){
         for(l[x][y]=1;l[x][y]<=4;l[x][y]++){
                                             for(i=1;i<=3;i++){
                                                               if(l[x+i][y]!=l[x][y]){if(l[x-i][y]!=l[x][y]){cout <<  ""; 


switch(y){


case 0:if(y+i<=3){cout<< "";
if(l[x][y+i]!=l[x][y]){cout<<"";
z++; if(z>2){cout << l[x][y] <<' '<<"|";};};};break;
case 3:
if(true){cout<<"";
if(l[x][y-i]!=l[x][y]){cout<<"";
z++; if(z>2){cout << l[x][y] <<' '<<"|";};};};break;
default:if(y+i<=3){cout<< "";
if(l[x][y+i]!=l[x][y]){cout<<"";
for(m=1;m<=3;m++){cout<<"";

if(y-i>=0){cout<<"";
if(l[x][y-i]!=l[x][y]){cout<<"";
z++; if(z>2){cout << l[x][y] <<' '<<"|";};};};};};};break;



};
};};}; z=0;};cout<<".";l[x][y]=0;};};cout<<"\n";}; cout <<"\n";

cout << "\n";
cout << l[0][1] << l[0][1] << l[0][2] << l[0][3];
cout << "\n";
cin>>z;
return 0;
}

[Josue Molina]

There's no such thing as "a compiler [that] cannot digest this many [a lot of] 'for loops'"; you have a logical error.

Explain what you're trying to do; it's unclear.

[sgameara]

code which checks for unique values in a line and column.