oj.uz

Submission #728068

# Submission time Handle Problem Language Result Execution time Memory
728068 2023-04-21T22:48:01 Z stevancv Distributing Candies (IOI21_candies) C++17
100 / 100
 408 ms 38460 KB 
#include <bits/stdc++.h>
#include "candies.h"
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 2e5 + 2;
const int mod = 1e9 + 7;
ll sum[4 * N], mn[4 * N], mx[4 * N];
void Add(int node, int l, int r, int x, int y) {
    if (l == r) {
        sum[node] += y; mn[node] = mx[node] = sum[node];
        return;
    }
    int mid = l + r >> 1;
    if (x <= mid) Add(2 * node, l, mid, x, y);
    else Add(2 * node + 1, mid + 1, r, x, y);
    sum[node] = sum[2 * node] + sum[2 * node + 1];
    mn[node] = min(mn[2 * node], sum[2 * node] + mn[2 * node + 1]);
    mx[node] = max(mx[2 * node], sum[2 * node] + mx[2 * node + 1]);
}
int Solve(int node, int l, int r, int x) {
    if (l == r) return max(0ll, min((ll)x, sum[node]));
    int mid = l + r >> 1;
    if (mx[2 * node + 1] - mn[2 * node + 1] > x) return Solve(2 * node + 1, mid + 1, r, x);
    int o = Solve(2 * node, l, mid, x);
    if (o + mn[2 * node + 1] < 0) return sum[2 * node + 1] - mn[2 * node + 1];
    if (o + mx[2 * node + 1] > x) return x + sum[2 * node + 1] - mx[2 * node + 1];
    return o + sum[2 * node + 1];
}
vector<int> distribute_candies(vector<int> c, vector<int> l, vector<int> r, vector<int> v) {
    int n = c.size(); int q = v.size();
    vector<vector<pair<int, int>>> g(n);
    for (int i = 0; i < q; i++) {
        g[l[i]].push_back({i, v[i]});
        if (r[i] < n - 1) g[r[i] + 1].push_back({i, -v[i]});
    }
    vector<int> ans;
    for (int i = 0; i < n; i++) {
        for (auto u : g[i]) Add(1, 0, q - 1, u.first, u.second);
        ans.push_back(Solve(1, 0, q - 1, c[i]));
    }
    return ans;
}

Compilation message

candies.cpp: In function 'void Add(int, int, int, int, int)':
candies.cpp:18:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   18 |     int mid = l + r >> 1;
      |               ~~^~~
candies.cpp: In function 'int Solve(int, int, int, int)':
candies.cpp:27:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |     int mid = l + r >> 1;
      |               ~~^~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 5 ms 596 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 334 ms 36548 KB Output is correct
2 Correct 330 ms 35844 KB Output is correct
3 Correct 331 ms 35632 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 183 ms 24808 KB Output is correct
3 Correct 60 ms 10152 KB Output is correct
4 Correct 355 ms 37632 KB Output is correct
5 Correct 380 ms 38196 KB Output is correct
6 Correct 406 ms 38460 KB Output is correct
7 Correct 340 ms 37800 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 119 ms 21676 KB Output is correct
4 Correct 55 ms 9080 KB Output is correct
5 Correct 148 ms 30424 KB Output is correct
6 Correct 167 ms 31220 KB Output is correct
7 Correct 147 ms 31708 KB Output is correct
8 Correct 147 ms 30384 KB Output is correct
9 Correct 153 ms 31848 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 5 ms 596 KB Output is correct
6 Correct 334 ms 36548 KB Output is correct
7 Correct 330 ms 35844 KB Output is correct
8 Correct 331 ms 35632 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 183 ms 24808 KB Output is correct
11 Correct 60 ms 10152 KB Output is correct
12 Correct 355 ms 37632 KB Output is correct
13 Correct 380 ms 38196 KB Output is correct
14 Correct 406 ms 38460 KB Output is correct
15 Correct 340 ms 37800 KB Output is correct
16 Correct 1 ms 316 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 119 ms 21676 KB Output is correct
19 Correct 55 ms 9080 KB Output is correct
20 Correct 148 ms 30424 KB Output is correct
21 Correct 167 ms 31220 KB Output is correct
22 Correct 147 ms 31708 KB Output is correct
23 Correct 147 ms 30384 KB Output is correct
24 Correct 153 ms 31848 KB Output is correct
25 Correct 1 ms 312 KB Output is correct
26 Correct 56 ms 9156 KB Output is correct
27 Correct 218 ms 24552 KB Output is correct
28 Correct 336 ms 36280 KB Output is correct
29 Correct 408 ms 36692 KB Output is correct
30 Correct 321 ms 36972 KB Output is correct
31 Correct 323 ms 37052 KB Output is correct
32 Correct 383 ms 37228 KB Output is correct