View Compilation Error

0_0_6566143_26291.cpp: In function `int get(int, int, int)':
0_0_6566143_26291.cpp:43: error: `r' undeclared (first use this function)
0_0_6566143_26291.cpp:43: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6566143_26291.cpp:43: error: expected `;' at end of input
0_0_6566143_26291.cpp:43: error: expected `}' at end of input
0_0_6566143_26291.cpp:43: error: expected `}' at end of input