Submission #1156656

#	Time	Username	Problem	Language	Result	Execution time	Memory
1156656		t9unkubj	Sails (IOI07_sails)	C++20	100 / 100	35 ms	5192 KiB

sails

#ifdef t9unkubj
#include"debug.cpp"
//#include"template_no_debug.h"
#else 
#define dbg(...) 199958
#endif

#undef _GLIBCXX_DEBUG
#pragma GCC optimize("O3")
using namespace std;
#include<bits/stdc++.h>
using ll=long long;
using ull=unsigned long long;
template<class T>using vc=vector<T>;
template<class T>using vvc=vc<vc<T>>;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,j,n) for(ll i=(j);i<(ll)(n);i++)
#define DREP(i,n,m) for(ll i=(n);i>=(m);i--)
#define drep(i,n) for(ll i=((n)-1);i>=0;i--)
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
template<class T,class F>
bool chmin(T &x, F y){
    if(x>y){
        x=y;
        return true;
    }
    return false;
}
template<class T, class F>
bool chmax(T &x, F y){
    if(x<y){
        x=y;
        return true;
    }
    return false;
}
double pass_time=0;
void solve(){
    int n;
    cin>>n;
    vc<pair<int,int>>h(n);
    rep(i,n)cin>>h[i].first>>h[i].second;
    sort(all(h));
    multiset<int>st{0};
    rep(i,n){
        st.insert(h[i].first);
        auto it1=st.upper_bound(h[i].first-h[i].second);
        auto it2=prev(it1);
        int inc=*it1-(h[i].first-h[i].second);
        int val=*it2;
        if(it2!=st.begin())st.erase(it2);
        st.insert(val+inc);
        st.erase(it1);
    }
    vc<ll>cnt(st.size());
    int I=st.size()-1;

    for(auto itr=st.begin();next(itr)!=st.end();itr++){
        cnt[I--]=*next(itr)-*itr;
    }
    dbg(cnt);
    ll ans=0;
    rep(i,cnt.size()){
        ans+=i*(i-1)/2*cnt[i];
    }
    cout<<ans<<"\n";
}
signed main(){
    cin.tie(0)->sync_with_stdio(0);
    pass_time=clock();
    int t=1;
    //cin>>t;
    while(t--)solve();
    pass_time=clock()-pass_time;
    dbg(pass_time/CLOCKS_PER_SEC);
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10
• Subtask 11: 10 / 10