运行 ID: 308244

Main.c: In function ‘main’:
Main.c:8:23: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]
 if(n%4==0&&n%100!=0||n&400==0) cout<<"Yes";
                       ^
Main.c:8:10: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
 if(n%4==0&&n%100!=0||n&400==0) cout<<"Yes";
    ~~~~~~^~~~~~~~~~
Main.c:8:32: error: ‘cout’ undeclared (first use in this function)
 if(n%4==0&&n%100!=0||n&400==0) cout<<"Yes";
                                ^~~~
Main.c:8:32: note: each undeclared identifier is reported only once for each function it appears in
Main.c:5:1: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d", &t);
 ^~~~~~~~~~~~~~~
Main.c:7:1: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d", &n);
 ^~~~~~~~~~~~~~~