Submission #945980

#	Time	Username	Problem	Language	Result	Execution time	Memory
945980		beepbeepsheep	New Home (APIO18_new_home)	C++17	12 / 100	1526 ms	94644 KiB

new_home

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

#define ll long long
#define ii pair<ll,ll>
#define iii tuple<ll,ll,ll>

#ifndef DEBUG
#define cerr if (0) cerr
#define endl '\n'
#endif // DEBUG

const ll maxn=2e5+5;
const ll inf=1e15;
const ll mod=1e9+7;

multiset<ll> s[405];
vector<tuple<ll,ll,ll,ll>> v;
vector<iii> q;
ll ans[maxn];
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll n,qu,x,t,a,b,k;
    cin>>n>>k>>qu;
    for (int i=1;i<=n;i++){
        cin>>x>>t>>a>>b;
        v.emplace_back(a,x,t,1);
        v.emplace_back(b+1,x,t,-1);
    }
    sort(v.begin(),v.end());
    for (int i=1;i<=qu;i++){
        cin>>x>>t;
        q.emplace_back(t,x,i);
    }
    sort(q.begin(),q.end());
    for (int i=1;i<=k;i++) s[i].emplace(-inf),s[i].emplace(inf);
    ll ptr=0;
    for (auto [t,x,idx]:q){
        while (ptr!=v.size() && get<0>(v[ptr])<=t){
            ll a,b,c,d;
            tie(a,b,c,d)=v[ptr];
            if (d==-1){
                s[c].erase(s[c].find(b));
            } else{
                s[c].emplace(b);
            }
            ptr++;
        }
        ll tot=0;
        for (int i=1;i<=k;i++){
            auto it=s[i].lower_bound(x);
            auto it2=it;
            it2--;
            ll dis=min(abs(x-*it),abs(x-*it2));
            tot=max(dis,tot);
        }
        if (tot>mod) ans[idx]=-1;
        else ans[idx]=tot;
    }
    for (int i=1;i<=qu;i++) cout<<ans[i]<<endl;
    return 0;
}

Compilation message (stderr)

new_home.cpp: In function 'int main()':
new_home.cpp:40:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::tuple<long long int, long long int, long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         while (ptr!=v.size() && get<0>(v[ptr])<=t){
      |                ~~~^~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20