2-3 # include void main() int n,y(0); cinn; if (n0)cout void main() double score; char level; int i;for ( i=1;iscore; if (score=90 int ascii; coutletter; ascii=letter; if (ascii=48 double pi=0,u=1.0; do k*=(-1); u=1.0/(2*i-1); pi+=k*u; i+; while(u=0.000001); cout # include void main() int b(2),i(0),j(1); coutvoid main() int a,e,i,o,u; a=e=i=o=u=0; char letter; coutletter; switch (letter) case a:a+;break; case e:e+;break; case i:i+;break; case o:o+;break; case u:u+;break; case #:cout void main() int a(1),b(1),c(1),i,j,k,sum(3); for (i=1;i void main() int i,j,sum(0);/为什么m定义在这里和下面不一样？for (i=5;i void main() int i, m(1); for(m=2;m void main() int m=1; int n=0; start:; m+; for (int i=2;i=m;i+) if(m%i=0) break; if (i=m) coutmendl; n+=1; if(n!=100) goto start;