View Compilation Error

0_0_37509286_20150.cpp: In function 'int main()':
0_0_37509286_20150.cpp:21:49: error: 's' was not declared in this scope
         for(int i = 0 ; i < N ; i ++ ) p[i] = i,s[i] = 0;
                                                 ^
0_0_37509286_20150.cpp:35:16: error: expected primary-expression before ')' token
             if()
                ^