选票统计
题目:有编号为1到9的候选人参加投票选举,每张选票填三个候选人,当选票出现有零时结束计票,现要求编写程序统计每位候选人得票数。
比较下面两种编程方法。
方法一:
#include <iostream>
using namespace std;
int main(){
int cnt1=0,cnt2=0,cnt3=0,cnt4=0,cnt5=0,cnt6=0,cnt7=0,cnt8=0,cnt9=0; //初值置零
int i;
while(cin>>i,i){ //逗号运算,返回最后项。
//cout<<i;
switch(i)
{
case 1:cnt1++;
break;
case 2:cnt2++;
break;
case 3:cnt3++;
break;
case 4:cnt4++;
break;
case 5:cnt5++;
break;
case 6:cnt6++;
break;
case 7:cnt7++;
break;
case 8:cnt8++;
break;
case 9:cnt9++;
break;
}
//cin>>i;
}
cout<<"1号得票:"<<cnt1<<" ";
cout<<"2号得票:"<<cnt2<<" ";
cout<<"3号得票:"<<cnt3<<endl;
cout<<"4号得票:"<<cnt4<<" ";
cout<<"5号得票:"<<cnt5<<" ";
cout<<"6号得票:"<<cnt6<<endl;
cout<<"7号得票:"<<cnt7<<" ";
cout<<"8号得票:"<<cnt8<<" ";
cout<<"9号得票:"<<cnt9;
return 0;
}
方法二:
#include <iostream>
using namespace std;
int main()
{
int cnt[10]={0};
int i;
while(cin>>i,i) cnt[i]++;
for(i=1;i<=9;i++)
{
cout<<i<<"号得票:"<<cnt[i] <<"张 ";
if(i%3==0) cout<<endl;
}
}

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