case1.cpp:5: error: expected ',' or ';' before 'ofstream' case1.cpp: In function 'int main()': case1.cpp:9: error: 'nr_case' was not declared in this scope case1.cpp:13: error: 'casa' was not declared in this scope case1.cpp:14: error: 'c' was not declared in this scope case1.cpp:14: error: expected primary-expression before '=' token case1.cpp:16: error: 'f' was not declared in this scope case1.cpp:16: error: expected primary-expression before '=' token case1.cpp:18: error: 'b' was not declared in this scope case1.cpp:18: error: expected primary-expression before '=' token case1.cpp:21: error: 'g1' was not declared in this scope case1.cpp:23: error: 'g2' was not declared in this scope case1.cpp:25: error: 'g3' was not declared in this scope case1.cpp:27: error: 'fout' was not declared in this scope case1.cpp:27: error: 'g1' was not declared in this scope case1.cpp:28: error: 'g2' was not declared in this scope case1.cpp:29: error: 'g3' was not declared in this scope case1.cpp:30: error: 'b' was not declared in this scope case1.cpp:31: error: 'f' was not declared in this scope case1.cpp:32: error: 'c' was not declared in this scope