Main.cc: In function 'int main()':
Main.cc:9:32: error: expected ')' before ';' token
for(int i=1,j=1;i<=1000;i++;j+=i){
^
Main.cc:9:17: warning: unused variable 'j' [-Wunused-variable]
for(int i=1,j=1;i<=1000;i++;j+=i){
^
Main.cc:9:33: error: 'j' was not declared in this scope
for(int i=1,j=1;i<=1000;i++;j+=i){
^
Main.cc:9:36: error: 'i' was not declared in this scope
for(int i=1,j=1;i<=1000;i++;j+=i){
^