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답안 #955388

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
955388 2024-03-30T10:21:35 Z hariaakas646 말 (IOI15_horses) C++17
100 / 100
 614 ms 73808 KB 
#include "horses.h"
#include <bits/stdc++.h>

using namespace std;

#define scd(t) scanf("%d", &t)
#define sclld(t) scanf("%lld", &t)
#define forr(i, j, k) for (int i = j; i < k; i++)
#define frange(i, j) forr(i, 0, j)
#define all(cont) cont.begin(), cont.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second
typedef long long int lli;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<lli> vll;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef map<int, int> mpii;
typedef set<int> seti;
typedef multiset<int> mseti;
typedef long double ld;


template <class T>
struct SegTree
{
    int size = 1, n;
    vector<T> segtree;
    vector<T> vec;

    T def; // Assign a value

    void init(int l, T defv)
    {
        n = l;
        def = defv;

        while (size < n)
            size *= 2;

        segtree.assign(2 * size, def);
        vec.assign(size, def);
    }

    T operation(T x, T y)
    {
        return max(x, y); // Any required operation
    }

    void recalculate(int x)
    {
        segtree[x] = operation(segtree[2 * x + 1], segtree[2 * x + 2]);
    }

    void build(int x, int l, int r)
    {
        if (l == r)
        {
            segtree[x] = vec[l];
            return;
        }
        int mid = (l + r) / 2;
        build(2 * x + 1, l, mid);
        build(2 * x + 2, mid + 1, r);
        recalculate(x);
    }

    void build()
    {
        build(0, 0, size - 1);
    }

    void set(int id, T val)
    {
        vec[id] = val;
    }

    void update(int x, int l, int r, int id, T val)
    {
        if (l == r)
        {
            segtree[x] = val;
            return;
        }
        int mid = (l + r) / 2;
        if (id <= mid)
        {
            update(2 * x + 1, l, mid, id, val);
        }
        else
        {
            update(2 * x + 2, mid + 1, r, id, val);
        }
        recalculate(x);
    }

    void update(int id, T val)
    {
        update(0, 0, size - 1, id, val);
    }

    T query(int x, int l, int r, int lx, int rx)
    {
        if (lx > r || rx < l)
        {
            return def;
        }
        if (lx <= l && r <= rx)
        {
            return segtree[x];
        }
        int mid = (l + r) / 2;
        T v1 = query(2 * x + 1, l, mid, lx, rx);
        T v2 = query(2 * x + 2, mid + 1, r, lx, rx);
        return operation(v1, v2);
    }

    T query(int lx, int rx)
    {
        return query(0, 0, size - 1, lx, rx);
    }
};

const lli mod = 1e9 + 7;

template <class T>
struct SegTreeMul
{
    int size = 1, n;
    vector<T> segtree;
    vector<T> vec;

    T def; // Assign a value

    void init(int l, T defv)
    {
        n = l;
        def = defv;

        while (size < n)
            size *= 2;

        segtree.assign(2 * size, def);
        vec.assign(size, def);
    }

    T operation(T x, T y)
    {
        return (x*y)%mod; // Any required operation
    }

    void recalculate(int x)
    {
        segtree[x] = operation(segtree[2 * x + 1], segtree[2 * x + 2]);
    }

    void build(int x, int l, int r)
    {
        if (l == r)
        {
            segtree[x] = vec[l];
            return;
        }
        int mid = (l + r) / 2;
        build(2 * x + 1, l, mid);
        build(2 * x + 2, mid + 1, r);
        recalculate(x);
    }

    void build()
    {
        build(0, 0, size - 1);
    }

    void set(int id, T val)
    {
        vec[id] = val;
    }

    void update(int x, int l, int r, int id, T val)
    {
        if (l == r)
        {
            segtree[x] = val;
            return;
        }
        int mid = (l + r) / 2;
        if (id <= mid)
        {
            update(2 * x + 1, l, mid, id, val);
        }
        else
        {
            update(2 * x + 2, mid + 1, r, id, val);
        }
        recalculate(x);
    }

    void update(int id, T val)
    {
        update(0, 0, size - 1, id, val);
    }

    T query(int x, int l, int r, int lx, int rx)
    {
        if (lx > r || rx < l)
        {
            return def;
        }
        if (lx <= l && r <= rx)
        {
            return segtree[x];
        }
        int mid = (l + r) / 2;
        T v1 = query(2 * x + 1, l, mid, lx, rx);
        T v2 = query(2 * x + 2, mid + 1, r, lx, rx);
        return operation(v1, v2);
    }

    T query(int lx, int rx)
    {
        return query(0, 0, size - 1, lx, rx);
    }
};

SegTree<lli> segtree;
SegTreeMul<lli> segmul;
seti act;
vll v1, v2;
int n;

int init(int N, int X[], int Y[]) {
	n = N;
	segtree.init(n, 0LL);
	segmul.init(n, 1);
	v1 = v2 = vll(n);

	frange(i, n) {
		if(X[i] != 1) act.insert(i);
		v1[i] = X[i];
		v2[i] = Y[i];
		segtree.set(i, v2[i]);
		segmul.set(i, v1[i]);
	}
	act.insert(0);
	segtree.build();
	segmul.build();

	auto it = act.end();
	frange(i, 30) {
		it--;
		if(it == act.begin()) break;
	}
	int ma = *it;
	lli v = segtree.query(ma, n-1);
	it++;
	lli curr = 1;
	while(it != act.end()) {
		int id = *it;
		curr *= v1[id];
		lli val = segtree.query(id, n-1);
		if(curr >= v || curr * val >= v) {
			ma = id;
			v = val;
			curr = 1;
		}
		it++;
	}

	lli out = segmul.query(0, ma) * segtree.query(ma, n-1) % mod;

	return out;
}

int updateX(int pos, int val) {	
	segmul.update(pos, val);
	if(v1[pos] != 1 && val == 1) act.erase(pos);
	if(val != 1) act.insert(pos);
	act.insert(0);
	v1[pos] = val;

	auto it = act.end();
	frange(i, 30) {
		it--;
		if(it == act.begin()) break;
	}
	int ma = *it;
	lli v = segtree.query(ma, n-1);
	it++;
	lli curr = 1;
	while(it != act.end()) {
		int id = *it;
		curr *= v1[id];
		lli val = segtree.query(id, n-1);
		if(curr >= v || curr * val >= v) {
			ma = id;
			v = val;
			curr = 1;
		}
		it++;
	}

	lli out = segmul.query(0, ma) * segtree.query(ma, n-1) % mod;

	return out;
}

int updateY(int pos, int val) {
	segtree.update(pos, val);
	v2[pos] = val;

	auto it = act.end();
	frange(i, 30) {
		it--;
		if(it == act.begin()) break;
	}
	int ma = *it;
	lli v = segtree.query(ma, n-1);
	it++;
	lli curr = 1;
	while(it != act.end()) {
		int id = *it;
		curr *= v1[id];
		lli val = segtree.query(id, n-1);
		if(curr >= v || curr * val >= v) {
			ma = id;
			v = val;
			curr = 1;
		}
		it++;
	}

	lli out = segmul.query(0, ma) * segtree.query(ma, n-1) % mod;

	return out;
}

Compilation message

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:277:9: warning: conversion from 'lli' {aka 'long long int'} to 'int' may change value [-Wconversion]
  277 |  return out;
      |         ^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:299:7: warning: declaration of 'lli val' shadows a parameter [-Wshadow]
  299 |   lli val = segtree.query(id, n-1);
      |       ^~~
horses.cpp:280:26: note: shadowed declaration is here
  280 | int updateX(int pos, int val) {
      |                      ~~~~^~~
horses.cpp:310:9: warning: conversion from 'lli' {aka 'long long int'} to 'int' may change value [-Wconversion]
  310 |  return out;
      |         ^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:329:7: warning: declaration of 'lli val' shadows a parameter [-Wshadow]
  329 |   lli val = segtree.query(id, n-1);
      |       ^~~
horses.cpp:313:26: note: shadowed declaration is here
  313 | int updateY(int pos, int val) {
      |                      ~~~~^~~
horses.cpp:340:9: warning: conversion from 'lli' {aka 'long long int'} to 'int' may change value [-Wconversion]
  340 |  return out;
      |         ^~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 496 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 4 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 3 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 4 ms 344 KB Output is correct
28 Correct 3 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 3 ms 348 KB Output is correct
31 Correct 2 ms 344 KB Output is correct
32 Correct 2 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 404 ms 61264 KB Output is correct
2 Correct 498 ms 61264 KB Output is correct
3 Correct 476 ms 61144 KB Output is correct
4 Correct 544 ms 61188 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 356 KB Output is correct
13 Correct 0 ms 360 KB Output is correct
14 Correct 0 ms 352 KB Output is correct
15 Correct 0 ms 352 KB Output is correct
16 Correct 0 ms 360 KB Output is correct
17 Correct 0 ms 360 KB Output is correct
18 Correct 0 ms 360 KB Output is correct
19 Correct 0 ms 360 KB Output is correct
20 Correct 0 ms 360 KB Output is correct
21 Correct 0 ms 360 KB Output is correct
22 Correct 0 ms 360 KB Output is correct
23 Correct 3 ms 360 KB Output is correct
24 Correct 2 ms 360 KB Output is correct
25 Correct 2 ms 360 KB Output is correct
26 Correct 2 ms 360 KB Output is correct
27 Correct 3 ms 360 KB Output is correct
28 Correct 3 ms 360 KB Output is correct
29 Correct 1 ms 360 KB Output is correct
30 Correct 3 ms 464 KB Output is correct
31 Correct 2 ms 360 KB Output is correct
32 Correct 2 ms 360 KB Output is correct
33 Correct 77 ms 40884 KB Output is correct
34 Correct 62 ms 40788 KB Output is correct
35 Correct 178 ms 71452 KB Output is correct
36 Correct 171 ms 71044 KB Output is correct
37 Correct 68 ms 38996 KB Output is correct
38 Correct 109 ms 51796 KB Output is correct
39 Correct 32 ms 38748 KB Output is correct
40 Correct 173 ms 66128 KB Output is correct
41 Correct 45 ms 38736 KB Output is correct
42 Correct 53 ms 38920 KB Output is correct
43 Correct 130 ms 66680 KB Output is correct
44 Correct 137 ms 66640 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 0 ms 600 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 596 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 3 ms 360 KB Output is correct
24 Correct 2 ms 360 KB Output is correct
25 Correct 3 ms 360 KB Output is correct
26 Correct 2 ms 360 KB Output is correct
27 Correct 3 ms 360 KB Output is correct
28 Correct 3 ms 360 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 3 ms 348 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 2 ms 536 KB Output is correct
33 Correct 421 ms 65256 KB Output is correct
34 Correct 493 ms 73808 KB Output is correct
35 Correct 466 ms 64932 KB Output is correct
36 Correct 523 ms 69376 KB Output is correct
37 Correct 77 ms 40924 KB Output is correct
38 Correct 63 ms 40788 KB Output is correct
39 Correct 178 ms 71060 KB Output is correct
40 Correct 177 ms 70996 KB Output is correct
41 Correct 67 ms 39092 KB Output is correct
42 Correct 109 ms 51796 KB Output is correct
43 Correct 31 ms 38744 KB Output is correct
44 Correct 173 ms 66540 KB Output is correct
45 Correct 44 ms 38748 KB Output is correct
46 Correct 52 ms 38804 KB Output is correct
47 Correct 131 ms 66640 KB Output is correct
48 Correct 141 ms 66540 KB Output is correct
49 Correct 463 ms 43860 KB Output is correct
50 Correct 353 ms 43884 KB Output is correct
51 Correct 452 ms 73128 KB Output is correct
52 Correct 444 ms 72532 KB Output is correct
53 Correct 443 ms 42364 KB Output is correct
54 Correct 463 ms 55632 KB Output is correct
55 Correct 109 ms 39748 KB Output is correct
56 Correct 614 ms 67880 KB Output is correct
57 Correct 227 ms 40528 KB Output is correct
58 Correct 306 ms 41044 KB Output is correct
59 Correct 138 ms 66644 KB Output is correct