Run id: 129530

Main.cc: In function 'int main()':
Main.cc:11:19: warning: for increment expression has no effect [-Wunused-value]
     for(int i=1;;i<=n;i++){
                   ^
Main.cc:11:22: error: expected ')' before ';' token
     for(int i=1;;i<=n;i++){
                      ^
Main.cc:11:23: error: 'i' was not declared in this scope
     for(int i=1;;i<=n;i++){
                       ^
Main.cc:9:14: warning: unused variable 'h' [-Wunused-variable]
     double a,h;
              ^