Submission #1125572

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125572		steveonalex	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	282 ms	31792 KiB

Main

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;

#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()

ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}

ll gcd(ll a, ll b){
    while(a > 0 && b > 0){
        if (a > b) a %= b;
        else b %= a;
    }
    return a + b;
}
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ll mask){return __builtin_ctzll(mask);}
int logOf(ll mask){return __lg(mask);}

mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}

template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }

template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }

template <class T>
    void printArr(T& container, string separator = " ", string finish = "\n"){
        for(auto item: container) cout << item << separator;
        cout << finish;
    }


template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

void solve(){
    int n; cin >> n;
    vector<pair<int, int>> a(n);
    for(int i = 0; i< n; ++i) cin >> a[i].first >> a[i].second;
    for(int i = 0; i< n; ++i) {
        a[i] = {a[i].first + a[i].second, a[i].second - a[i].first};
    }
    sort(ALL(a));

    map<int, int> mp;
    for(pair<int, int> i: a) {
        mp[i.first] = i.second;
    }
    a = vector<pair<int,int>> (ALL(mp));
    reverse(ALL(a));
    int ans = 0, ma = -2e9;
    for(pair<int, int> i: a){
        ans += maximize(ma, i.second);
    }
    cout << ans << "\n";
}

int main(void){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    clock_t start = clock();

    solve();

    cerr << "Time elapsed: " << clock() - start << "ms!\n";
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 23 / 23
• Subtask 3: 36 / 36
• Subtask 4: 31 / 31