0_0_30768684_30713.cpp: In function 'int main()': 0_0_30768684_30713.cpp:52:10: error: 'p' was not declared in this scope gbs = p * t / gbs; ^ 0_0_30768684_30713.cpp:52:14: error: 't' was not declared in this scope gbs = p * t / gbs; ^