Submission #1281145

#	Time	Username	Problem	Language	Result	Execution time	Memory
1281145		Faisal_Saqib	Art Exhibition (JOI18_art)	C++20	100 / 100	222 ms	31608 KiB

art

/* 
    VENI VIDI VICI
*/
// #ifdef ONLINE_JUDGE
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <string>
#include <numeric>
#include <chrono>
#include <random>
#include <cmath>
#include <utility>
#include <fstream>

using namespace std;

#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()

mt19937 RNG(chrono::steady_clock::now().time_since_epoch().count());  

using i128 = __int128;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using str = string;
using pi = pair<int, int>;
using pl = pair<ll, ll>;

using vi = vector<int>;
using vl = vector<ll>;
using vpi = vector<pair<int, int>>;
using vvi = vector<vi>;
using sll = set<ll>;

template<class T>
istream& operator>>(istream& is, vector<T>& v) {
    for(auto &i:v) is>>i;
    return is;
}
template<class T1,class T2>
istream& operator>>(istream& is, pair<T1,T2>& p) {
    is>>p.fi>>p.se;
    return is;
}
template<class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
    for(const auto &i:v) os<<i<<' ';
    return os;
}
template<class T1,class T2>
ostream& operator<<(ostream& os, const pair<T1,T2>& p) {
    os<<p.fi<<' '<<p.se; return os;
}
void pyn(bool x)
{
    cout<<(x?"YES":"NO")<<endl;
}
void pYN(bool x)
{
    cout<<(x?"Yes":"No")<<endl;
}
void pAB(bool x)
{
    cout<<(x?"Alice":"Bob")<<endl;
}
ll powmod(ll a,ll b,ll modulo)
{
  if(b==0){
    return 1;
  }
  ll temp=powmod(a,b/2,modulo);
  if(b%2==0){
    return (temp*temp)%modulo;
  }
  else{
    return (a*((temp*temp)%modulo))%modulo;
  }
}
bool Prime(ll n){
    for (ll i = 2; i*i <= n; i++)
        if (n % i == 0)
            return false;
    return (n>1);
}
void readIO() {
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
}
// #endif
void solve();
int main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    // readIO();

    int uwu=1;

    // cin>>uwu;

    for(int tc=1;tc<=uwu;tc++) {
        // cout<<"Case #"<<tc<<": ";
        solve();
    }
    return 0;
}
void solve()
{
    ll n;
    cin>>n;
    vector<pl> a(n);
    for(int i=0;i<n;i++)
    {
        cin>>a[i].ff>>a[i].ss;

    }
    sort(all(a));
    for(int i=1;i<n;i++)
    {
        a[i].ss+=a[i-1].ss;
    }
    // (i<=j)
    // a[j].ss-a[j].ff - (a[i-1].ss-a[i].ff)
    ll l=0;
    ll ans=0;
    set<ll> cur;
    for(int i=0;i<n;i++)
    {
        cur.insert(l-a[i].ff);
        ll x=a[i].ss-a[i].ff;
        ans=max(ans,x-*begin(cur));
        l=a[i].ss;
    }
    cout<<ans<<endl;
}

Compilation message (stderr)

art.cpp: In function 'void readIO()':
art.cpp:93:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:94:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50