Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
143375 左锶焜 18患病人数占总患病人数的比例 C++ Compile Error 0 MS 0 KB 624 2026-01-13 19:07:01

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a[101],n,A=0,B=0,C=0,D=0; cin>>n; for(int i=1;i<=n;i++) cin>>a[i]; if(19>a[i]) A++; else if(36>a[i]) B++; else if(61>a[i]) C++; else D++; printf("%.2lf%%\n",A*1.0/n*100); printf("%.2lf%%\n",B*1.0/n*100); printf("%.2lf%%\n",C*1.0/n*100); printf("%.2lf%%",D*1.0/n*100); return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:12:13: error: 'i' was not declared in this scope
     if(19>a[i])
             ^