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[題解]印表機佇列

a163. 印表機佇列

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#include <bits/stdc++.h>
using namespace std;

bool Can(int now_priority,int *p){
for(int i=now_priority+1;i<=9;i++){
if(p[i]>=1)return 0;
}
return 1;
}

void solve(){
int n,m,pri[105];cin>>n>>m;
queue<pair<bool,int>> que;
memset(pri,0,sizeof(pri));
for(int i=0;i<n;i++){
int p;cin>>p;
if(i==m)que.push({1,p});
else que.push({0,p});
pri[p]++;
}

int ans = 0;
while(!que.empty()){
auto cur = que.front();
que.pop();
if(Can(cur.second,pri)){
//可以印的話
ans++;
pri[cur.second]--;
if(cur.first==1)break;
}
else que.push(cur);
}
cout<<ans<<endl;
}

int main(){
int t;cin>>t;
while(t--){
solve();
}
}