Run id: 119877

Main.cc: In function 'int main()':
Main.cc:10:8: error: 'a' was not declared in this scope
     if(a%4==0,a%100!=0)(a%400==0,a%100==0,a%4==0)
        ^
Main.cc: At global scope:
Main.cc:13:5: error: expected unqualified-id before 'else'
     else{
     ^
Main.cc:16:5: error: expected unqualified-id before 'return'
     return 0;
     ^
Main.cc: In function 'int main()':
Main.cc:9:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^