View Compilation Error

0_0_25278701_26507.cpp: In function 'int main()':
0_0_25278701_26507.cpp:20:28: error: missing template arguments before ')' token
    memset(vis,0,sizeof(hash));
                            ^
0_0_25278701_26507.cpp:24:26: error: 'j' was not declared in this scope
     for(int x2=1;x2<=100;j++)
                          ^
0_0_25278701_26507.cpp:31:25: error: 'i' was not declared in this scope
    for(int x3=1;x3<=100;i++)
                         ^
0_0_25278701_26507.cpp:33:26: error: 'j' was not declared in this scope
     for(int x4=1;x4<=100;j++)
                          ^