针对各个设备记录操作就行
#include"stdio.h"
#include"string.h"
int a[30] = {0};
int ac[30] = {0};
int main(void)
{
int i,n,b,m,c,f,ix = 1,flag,ans;
while((scanf("%d %d %d",&n,&m,&c)) == 3 && (n | m | c))
{
memset(ac,0,sizeof(ac));
f = (flag = (ans = 0));
for( i = 0 ; i < n ; i ++)
{
scanf("%d",a + i);
}
while(m --)
{
scanf("%d",&b);
if(!(ac[b - 1]))
{
f += a[b - 1];
ac[b - 1] = 1;
}
else
{
......
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