View Compilation Error

0_0_17742372_2222.cpp: In function 'int main()':
0_0_17742372_2222.cpp:71:17: error: 'block' was not declared in this scope
             if (block
                 ^
0_0_17742372_2222.cpp:71:17: error: expected ')' at end of input
0_0_17742372_2222.cpp:71:17: error: expected statement at end of input
0_0_17742372_2222.cpp:71:17: error: expected '}' at end of input
0_0_17742372_2222.cpp:71:17: error: expected '}' at end of input
0_0_17742372_2222.cpp:71:17: error: expected '}' at end of input