Main.cc: In function 'int main()':
Main.cc:6:13: error: expected primary-expression before '=' token
if(year%4!==0) {
^
Main.cc:9:16: error: expected primary-expression before '=' token
if(year%100!==0) {
^
Main.cc:12:17: error: expected primary-expression before '=' token
if(year%400!==0) {
^