Main.cc: In function 'int main()': Main.cc:6:11: error: 'n' was not declared in this scope (200<=n<=1000,1<=k<=100); ^ Main.cc:6:22: error: 'k' was not declared in this scope (200<=n<=1000,1<=k<=100); ^ Main.cc:5:9: warning: unused variable 'i' [-Wunused-variable] int i,sum=0; ^ Main.cc:5:11: warning: unused variable 'sum' [-Wunused-variable] int i,sum=0; ^ Main.cc:6:29: error: expected '}' at end of input (200<=n<=1000,1<=k<=100); ^