oj.uz

Submission #860175

# Submission time Handle Problem Language Result Execution time Memory
860175 2023-10-12T02:33:31 Z Nhoksocqt1 Sure Bet (CEOI17_sure) C++17
100 / 100
 66 ms 3756 KB 
#include<bits/stdc++.h>
using namespace std;

#define inf 0x3f3f3f3f
#define sz(x) int((x).size())
#define fi first
#define se second
typedef long long ll;
typedef pair<int, int> ii;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int Random(int l, int r) {
    return uniform_int_distribution<int>(l, r)(rng);
}

const int MAXN = 100005;

double a[MAXN], b[MAXN];
int nArr;

void process(void) {
    cin >> nArr;
    for (int i = 1; i <= nArr; ++i)
        cin >> a[i] >> b[i];

    sort(a + 1, a + nArr + 1);
    sort(b + 1, b + nArr + 1);

    double res(0), sumA(0), sumB(0);
    int i(nArr), j(nArr);
    while(max(i, j) > 0) {
        if(j == 0 || i > 0 && sumA <= sumB) {
            sumA += a[i--];
        } else {
            sumB += b[j--];
        }

        res = max(res, min(sumA, sumB) - 2 * nArr + i + j);
    }

    cout << setprecision(4) << fixed << res << '\n';
}

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

    process();
    return 0;
}

Compilation message

sure.cpp: In function 'void process()':
sure.cpp:32:28: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   32 |         if(j == 0 || i > 0 && sumA <= sumB) {
      |                      ~~~~~~^~~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory 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 472 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory 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 472 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 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 468 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory 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 472 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 1 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 468 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 54 ms 3168 KB Output is correct
18 Correct 55 ms 3152 KB Output is correct
19 Correct 57 ms 3196 KB Output is correct
20 Correct 62 ms 3368 KB Output is correct
21 Correct 58 ms 3748 KB Output is correct
22 Correct 54 ms 3168 KB Output is correct
23 Correct 66 ms 3384 KB Output is correct
24 Correct 54 ms 3256 KB Output is correct
25 Correct 55 ms 3168 KB Output is correct
26 Correct 60 ms 3756 KB Output is correct