View Compilation Error

0_0_4415916_3206.cpp: In function `int main()':
0_0_4415916_3206.cpp:178: error: `p' undeclared (first use this function)
0_0_4415916_3206.cpp:178: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4415916_3206.cpp:198: error: `c' undeclared (first use this function)
0_0_4415916_3206.cpp:200: error: `dist' undeclared (first use this function)