oj.uz

Submission #826445

# Submission time Handle Problem Language Result Execution time Memory
826445 2023-08-15T15:02:41 Z nasam Feast (NOI19_feast) C++17
100 / 100
 90 ms 5788 KB 
#include <bits/stdc++.h>
#define ll long long
#define FOR(i,a,b) for (int i = (a), _b = (b); i <= _b; i++)
#define FOD(i,b,a) for (int i = (b), _a = (a); i >= _a; i--)
#define FORE(i, v) for (__typeof((v).begin()) i = (v).begin(); i != (v).end(); i++)
#define ALL(v) (v).begin(), (v).end()
#define BIT(x, i) (((x) >> (i)) & 1)
#define MASK(i) (1LL << (i))
#define CNTBIT(x) __builtin_popcount(x)
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define left ___left
#define right ___right
#define pii pair<int, int>
#define pll pair<ll, ll>
#define DEBUG(n, a) FOR (i, 1, n) cout << a[i] << ' '; cout << endl;
#define lob lower_bound // >=
#define upb upper_bound // >
#define endl "\n"
#define NAME "main"
 
using namespace std;
 
template<class X, class Y> bool maximize(X &x, Y y){ if (x < y){ x = y; return true; } return false; }
template<class X, class Y> bool minimize(X &x, Y y){ if (x > y){ x = y; return true; } return false; }
 
#define  gogobruhbruh  ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
 
const int MOD = 1e9 + 7;
 
void add(int &a, int b){ if ((a += b) >= MOD) a -= MOD; }
int sub(int a, int b){ if ((a -= b) < 0) a += MOD; return a; }
int muti(int a, int b){ return (1LL * a * b) % MOD; }
int Pow(int x, int y){ int res = 1; for (; y; y >>= 1){ if (y & 1) res = muti(res, x); x = muti(x, x); } return res; }
 
const int MAX = 3e5 + 7;
const ll INF = 1e18 + 5;
 
int num, lim;
ll pre[MAX], left, right;
 
#define state pair<ll, int>
 
void maxx(state &a, state b, ll val, bool ok){
    b.fi += val; b.se += ok;
    if (a.fi < b.fi)
        a = b;
}
 
state calc(ll cost){
    state Max, res;
    Max = res = {0, 0};
    FOR (i, 1, num){
        maxx(res, Max, pre[i] + cost, 1);
        maxx(Max, res, -pre[i], 0);
    }
    return res;
}
 
void solve(){
    left = -left; right = 0;
    ll res = 0;
    while (left <= right){
        ll mid = (left + right) >> 1;
        auto[DP, k] = calc(mid);
        if (k <= lim){
            left = mid + 1;
            res = DP - mid * lim;
        }else
            right = mid - 1;
    }
    cout << res;
}
 
void read(){
    cin >> num >> lim;
    ll Min = 0;
    FOR (i, 1, num)
        cin >> pre[i],
        pre[i] += pre[i - 1],
        maximize(left, pre[i] - Min),
        minimize(Min, pre[i]);
}
 
int main(){
    gogobruhbruh;
    file("main");
    int test = 1;
//    cin >> test;
    while (test--)
        read(),
        solve();
}

Compilation message

feast.cpp: In function 'int main()':
feast.cpp:30:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 | #define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
feast.cpp:90:5: note: in expansion of macro 'file'
   90 |     file("main");
      |     ^~~~
feast.cpp:30:95: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 | #define  file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                                                       ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
feast.cpp:90:5: note: in expansion of macro 'file'
   90 |     file("main");
      |     ^~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 5336 KB Output is correct
2 Correct 37 ms 5448 KB Output is correct
3 Correct 39 ms 5424 KB Output is correct
4 Correct 37 ms 5452 KB Output is correct
5 Correct 36 ms 5388 KB Output is correct
6 Correct 36 ms 5396 KB Output is correct
7 Correct 35 ms 5340 KB Output is correct
8 Correct 37 ms 5420 KB Output is correct
9 Correct 44 ms 5312 KB Output is correct
10 Correct 37 ms 5440 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 3668 KB Output is correct
2 Correct 24 ms 3804 KB Output is correct
3 Correct 22 ms 3668 KB Output is correct
4 Correct 22 ms 3664 KB Output is correct
5 Correct 37 ms 5304 KB Output is correct
6 Correct 30 ms 3620 KB Output is correct
7 Correct 29 ms 3796 KB Output is correct
8 Correct 45 ms 5444 KB Output is correct
9 Correct 44 ms 5392 KB Output is correct
10 Correct 23 ms 3688 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 5604 KB Output is correct
2 Correct 46 ms 5464 KB Output is correct
3 Correct 47 ms 5632 KB Output is correct
4 Correct 46 ms 5588 KB Output is correct
5 Correct 46 ms 5572 KB Output is correct
6 Correct 56 ms 5624 KB Output is correct
7 Correct 57 ms 5684 KB Output is correct
8 Correct 46 ms 5580 KB Output is correct
9 Correct 48 ms 5676 KB Output is correct
10 Correct 48 ms 5788 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 328 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 328 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 328 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 344 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 5336 KB Output is correct
2 Correct 37 ms 5448 KB Output is correct
3 Correct 39 ms 5424 KB Output is correct
4 Correct 37 ms 5452 KB Output is correct
5 Correct 36 ms 5388 KB Output is correct
6 Correct 36 ms 5396 KB Output is correct
7 Correct 35 ms 5340 KB Output is correct
8 Correct 37 ms 5420 KB Output is correct
9 Correct 44 ms 5312 KB Output is correct
10 Correct 37 ms 5440 KB Output is correct
11 Correct 22 ms 3668 KB Output is correct
12 Correct 24 ms 3804 KB Output is correct
13 Correct 22 ms 3668 KB Output is correct
14 Correct 22 ms 3664 KB Output is correct
15 Correct 37 ms 5304 KB Output is correct
16 Correct 30 ms 3620 KB Output is correct
17 Correct 29 ms 3796 KB Output is correct
18 Correct 45 ms 5444 KB Output is correct
19 Correct 44 ms 5392 KB Output is correct
20 Correct 23 ms 3688 KB Output is correct
21 Correct 48 ms 5604 KB Output is correct
22 Correct 46 ms 5464 KB Output is correct
23 Correct 47 ms 5632 KB Output is correct
24 Correct 46 ms 5588 KB Output is correct
25 Correct 46 ms 5572 KB Output is correct
26 Correct 56 ms 5624 KB Output is correct
27 Correct 57 ms 5684 KB Output is correct
28 Correct 46 ms 5580 KB Output is correct
29 Correct 48 ms 5676 KB Output is correct
30 Correct 48 ms 5788 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 328 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 344 KB Output is correct
61 Correct 85 ms 5560 KB Output is correct
62 Correct 75 ms 5652 KB Output is correct
63 Correct 61 ms 5504 KB Output is correct
64 Correct 79 ms 5632 KB Output is correct
65 Correct 82 ms 5668 KB Output is correct
66 Correct 90 ms 5652 KB Output is correct
67 Correct 80 ms 5576 KB Output is correct
68 Correct 58 ms 5668 KB Output is correct
69 Correct 58 ms 5472 KB Output is correct
70 Correct 46 ms 5544 KB Output is correct