Submission #1006965

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006965		Unforgettablepl	Food Court (JOI21_foodcourt)	C++17	7 / 100	12 ms	14172 KiB

foodcourt

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

#define x first
#define y second

#define int long long

deque   <pair<int,int>> queues[2001];

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m,q;
    cin >> n >> m >> q;
    for(int i=1;i<=q;i++){
        int type;cin>>type;
        if(type==1){
            int l,r,c,k;cin>>l>>r>>c>>k;
            for(int x=l;x<=r;x++)queues[x].emplace_back(k,c);
        } else if(type==2){
            int l,r,k;cin>>l>>r>>k;
            for(int x=l;x<=r;x++){
                int tar = k;
                while(tar and !queues[x].empty()){
                    if(queues[x].front().first<=tar){
                        tar-=queues[x].front().first;
                        queues[x].pop_front();
                    } else {
                        queues[x].front().first-=tar;
                        tar = 0;
                    }
                }
            }
        } else {
            int a,b;cin>>a>>b;
            int curr = 0;
            for(int i=0;i<queues[a].size();i++){
                curr+=queues[a][i].first;
                if(curr>=b){cout<<queues[a][i].second<<'\n';break;}
            }
            if(curr<b)cout<<"0\n";
        }
    }
}

Compilation message (stderr)

foodcourt.cpp: In function 'int32_t main()':
foodcourt.cpp:38:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::deque<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |             for(int i=0;i<queues[a].size();i++){
      |                         ~^~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 5 / 5
• Subtask 3: 0 / 7
• Subtask 4: 0 / 21
• Subtask 5: 0 / 15
• Subtask 6: 0 / 13
• Subtask 7: 0 / 26
• Subtask 8: 0 / 11