View Compilation Error

0_0_11697664_10639.cpp: In function `int main()':
0_0_11697664_10639.cpp:85: error: `pr' undeclared (first use this function)
0_0_11697664_10639.cpp:85: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11697664_10639.cpp:85: error: expected `;' at end of input
0_0_11697664_10639.cpp:85: error: expected `}' at end of input
0_0_11697664_10639.cpp:85: error: expected `}' at end of input