Main.cc: In function 'int main()':
Main.cc:5:11: error: expected ';' before '>=' token
for(int n>=1;n<1000;n++){
^
Main.cc:5:11: error: expected primary-expression before '>=' token
Main.cc:5:16: warning: for increment expression has no effect [-Wunused-value]
for(int n>=1;n<1000;n++){
^
Main.cc:5:21: error: expected ')' before ';' token
for(int n>=1;n<1000;n++){
^
Main.cc:5:22: error: 'n' was not declared in this scope
for(int n>=1;n<1000;n++){
^