0_0_2861785_7016.cpp: In function `bool line(point, point, point)': 0_0_2861785_7016.cpp:21: error: stray '\163' in program 0_0_2861785_7016.cpp:21: error: stray '\169' in program 0_0_2861785_7016.cpp:21: error: expected `)' before "return"