0_0_24884293_15954.cpp: In function 'void bing(int, int)': 0_0_24884293_15954.cpp:17:5: error: 'fau' was not declared in this scope fa[fau] = fav; ^ 0_0_24884293_15954.cpp:17:12: error: 'fav' was not declared in this scope fa[fau] = fav; ^