View Compilation Error

0_0_23852051_3638.cpp: In function 'int main()':
0_0_23852051_3638.cpp:8:22: error: 'j' was not declared in this scope
     for(int i=1;i<=w;j++)
                      ^
0_0_23852051_3638.cpp:12:5: error: expected ';' before '}' token
     }
     ^