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  1. i,j;f(n){for(;i++<n;)for(;j++<n;)printf("%d %d %d %d\n",i,j,i*i+j*j+i*j,i*i+j*j+i*j==n);/*if(i*i+j*j+i*i==n)return 1;return 0;*/}
  2. main(){f(4);}
Success #stdin #stdout 0s 2112KB
stdin
Standard input is empty
stdout
1 1 3 0
1 2 7 0
1 3 13 0
1 4 21 0