Main.cc: In function ‘int main()’: Main.cc:5:10: warning: right operand of comma operator has no effect [-Wunused-value] cin>>n,m; ^ Main.cc:7:15: error: expected ‘;’ before numeric constant for(int j=1 1;j<=m;j++){ ^ Main.cc:7:18: warning: for increment expression has no effect [-Wunused-value] for(int j=1 1;j<=m;j++){ ~^~~ Main.cc:7:21: error: expected ‘)’ before ‘;’ token for(int j=1 1;j<=m;j++){ ^ Main.cc:7:3: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int j=1 1;j<=m;j++){ ^~~ Main.cc:7:22: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’ for(int j=1 1;j<=m;j++){ ^ Main.cc:7:22: error: ‘j’ was not declared in this scope Main.cc:4:10: warning: unused variable ‘a’ [-Wunused-variable] int n,m,a[150][150],sum=0; ^