View Compilation Error

0_0_18910708_22118.cpp: In function 'int main()':
0_0_18910708_22118.cpp:11:76: error: 'i' was not declared in this scope
         printf("%d\n", m == 0 ? n + 1 : m == 3 ? (1 << (n + 3)) - 3 : m * (i + 1) + 1);
                                                                            ^