代码如下

int main(){ int n; cin>>n; int zhbrs[105]; for(int i=0;i<n;i++){ cin>>zhbrs[i]; }int a1; int a2; int a3; int a4; for(int i=0;i<n;i++){ if((zhbrs[i]>0&&zhbrs[i]<=18)){ a1++; }if(zhbrs[i]>18&&zhbrs[i]<=35){ a2++; }if(zhbrs[i]>35&&zhbrs[i]<=60){ a3++; }if(zhbrs[i]>60){ a4++; } } float b1=(double)a1*100/n; float b2=(double)a2*100/n; float b3=(double)a3*100/n; float b4=(double)a4*100/n; printf("%.2f%\n",b1); printf("%.2f%\n",b2); printf("%.2f%\n",b3); printf("%.2f%\n",b4); }