Submission #962472

#	Time	Username	Problem	Language	Result	Execution time	Memory
962472		Whisper	Simple (info1cup19_simple)	C++17	100 / 100	365 ms	43328 KiB

subway

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

#define int long long
#define FOR(i, a, b) for (int i = a; i <= b; i++)
#define FORD(i, a, b) for (int i = b; i >= a; i --)
#define REP(i, n) for (int i = 0; i < n; ++i)
#define REPD(i, n) for (int i = n - 1; i >= 0; --i)

#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)

constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void setupIO(){
    #define name "Whisper"
    //Phu Trong from Nguyen Tat Thanh High School for gifted student
    srand(time(NULL));
    cin.tie(nullptr)->sync_with_stdio(false); cout.tie(nullptr);
    //freopen(name".inp", "r", stdin);
    //freopen(name".out", "w", stdout);
    cout << fixed << setprecision(10);
}

template <class X, class Y>
    bool minimize(X &x, const Y &y){
        X eps = 1e-9;
        if (x > y + eps) {x = y; return 1;}
        return 0;
    }

template <class X, class Y>
    bool maximize(X &x, const Y &y){
        X eps = 1e-9;
        if (x + eps < y) {x = y; return 1;}
        return 0;
    }
const int MAX = 2e5 + 5;
int nArr, numQuery;
int a[MAX];

struct Node{
    int mxodd, mxeven, mnodd, mneven;
    Node(): mxodd(-1), mxeven(-1), mnodd(LINF), mneven(LINF){}
    Node(int _mxodd, int _mxeven, int _mnodd, int _mneven){
        mxodd = _mxodd;
        mxeven = _mxeven;
        mnodd = _mnodd;
        mneven = _mneven;
    }
    friend Node operator + (const Node& a, const Node& b){
        Node res;
        res.mxodd = max(a.mxodd, b.mxodd);
        res.mnodd = min(a.mnodd, b.mnodd);
        res.mxeven = max(a.mxeven, b.mxeven);
        res.mneven = min(a.mneven, b.mneven);
        return res;
    }
};

Node f[MAX << 2];
int lz[MAX << 2];
void BuildTree(int id, int l, int r){
    if (l == r){
        if(a[l] & 1)
            f[id].mxodd = a[l], f[id].mnodd = a[l];
        else
            f[id].mxeven = a[l], f[id].mneven = a[l];
        return;
    }
    int mid = (l + r) >> 1;
    BuildTree(id << 1, l, mid);
    BuildTree(id << 1 | 1, mid + 1, r);
    f[id] = f[id << 1] + f[id << 1 | 1];
}
void pushDown(int id){
    if(!lz[id]) return;
    for (auto &i : {2 * id, 2 * id + 1}){
        if(f[i].mxodd != -1) f[i].mxodd += lz[id];
        if(f[i].mxeven != -1) f[i].mxeven += lz[id];
        if(f[i].mnodd != LINF) f[i].mnodd += lz[id];
        if(f[i].mneven != LINF) f[i].mneven += lz[id];
        lz[i] += lz[id];
    }
    if (lz[id] & 1){
        swap(f[id << 1].mxodd, f[id << 1].mxeven);
        swap(f[id << 1].mnodd, f[id << 1].mneven);
        swap(f[id << 1 | 1].mxodd, f[id << 1 | 1].mxeven);
        swap(f[id << 1 | 1].mnodd, f[id << 1 | 1].mneven);
    }
    lz[id] = 0;
}
void modify(int id, int l, int r, int u, int v, int val){
    if (u > r || v < l) return;
    if (u <= l && v >= r){
        if (f[id].mxodd != -1) f[id].mxodd += val;
        if (f[id].mxeven != -1) f[id].mxeven += val;
        if (f[id].mnodd != LINF) f[id].mnodd += val;
        if (f[id].mneven != LINF) f[id].mneven += val;
        lz[id] += val;
        if (val & 1){
            swap(f[id].mxodd, f[id].mxeven);
            swap(f[id].mnodd, f[id].mneven);
        }
        return;
    }
    pushDown(id);
    int mid = (l + r) >> 1;
    modify(id << 1, l, mid, u, v, val);
    modify(id << 1 | 1, mid + 1, r, u, v, val);
    f[id] = f[id << 1] + f[id << 1 | 1];
}

Node Query(int id, int l, int r, int u, int v){
    if (u > r || v < l) return Node();
    if (u <= l && v >= r) return f[id];
    pushDown(id);
    int mid = (l + r) >> 1;
    Node ql = Query(id << 1, l, mid, u, v);
    Node qr = Query(id << 1 | 1, mid + 1, r, u, v);
    return (ql + qr);
}
void Whisper(){
    cin >> nArr;
    for (int i = 1; i <= nArr; ++i) cin >> a[i];
    BuildTree(1, 1, nArr);
    cin >> numQuery;
    for (int i = 1; i <= numQuery; ++i){
        int cmd; cin >> cmd;
        if(cmd == 0){
            int l, r, val; cin >> l >> r >> val;
            modify(1, 1, nArr, l, r, val);
        }
        else{
            int l, r; cin >> l >> r;
            Node ans = Query(1, 1, nArr, l, r);
            cout << (ans.mneven == LINF ? -1 : ans.mneven) << " " << ans.mxodd << '\n';
        }
    }
}


signed main(){
    setupIO();
    int Test = 1;
//    cin >> Test;
    for ( int i = 1 ; i <= Test ; i++ ){
        Whisper();
        if (i < Test) cout << '\n';
    }
}

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40