View Compilation Error

0_0_26100364_18847.cpp:7:15: error: 'N' was not declared in this scope
 bool no_prime[N];
               ^
0_0_26100364_18847.cpp: In function 'void get_prime()':
0_0_26100364_18847.cpp:10:12: error: 'no_prime' was not declared in this scope
         if(no_prime[i] == false){
            ^
0_0_26100364_18847.cpp:12:36: error: 'N' was not declared in this scope
             for(int j = i * i; j < N; j += tmp)
                                    ^
0_0_26100364_18847.cpp: In function 'int main()':
0_0_26100364_18847.cpp:26:16: error: 'no_prime' was not declared in this scope
             if(no_prime[i] != true && i%2 != 0 || i == 2){
                ^