0_0_14118660_16499.cpp: In function 'int main()': 0_0_14118660_16499.cpp:13:20: error: expected ')' before '!' token while(cin>>n&&n!>=0) ^ 0_0_14118660_16499.cpp:13:21: error: expected primary-expression before '>=' token while(cin>>n&&n!>=0) ^