oj.uz

Submission #1042465

# Submission time Handle Problem Language Result Execution time Memory
1042465 2024-08-03T04:41:36 Z ilovveyyou Money (IZhO17_money) C++14
0 / 100
 0 ms 492 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#define fi first
#define se second
#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define mp(x, y) make_pair(x, y)
#define sz(v) ((int) (v).size())
#define all(v) (v).begin(), (v).end()
#define MASK(i) (1LL << (i))
#define BIT(x, y) (((x) >> (y)) & 1)
#define clz __builtin_clzll
#define ctz __builtin_ctzll
#define popcount __builtin_popcount
#define lg(x) (63 - clz(x))
 
template <class X, class Y>
    inline bool maximize(X &x, Y y) {
        return (x < y ? x = y, true : false);
    }
template <class X, class Y>
    inline bool minimize(X &x, Y y) {
        return (x > y ? x = y, true : false);
    }
template <class X>
    inline void compress(vector<X> &a) {
        sort(all(a)); a.resize(unique(all(a)) - a.begin());
    }
 
const ll oo = (ll) 1e18, inf = (ll) 1e9, mod = (ll) 1e9 + 7;
const int mxn = (int) 1e6 + 5, S = (int) 450, S2 = (int) 450, lg = (int) 18;
 
void add(ll &x, ll y) {
    x += y;
    if (x >= mod) x -= mod;
}
 
void sub(ll &x, ll y) {
    x -= y;
    if (x < 0) x += mod;
}

int n;
int a[mxn];

namespace one {
    bool one() {
        return n <= 1e3;
    }

    const int mxn = (int) 1e3 + 5;
    int f[mxn];
    vector<int> cur[mxn];

    void solve() {

        memset(f, 0x3f, sizeof f);
        f[0] = 0;
        for (int i = 1; i <= n; ++i) {
            for (int j = 1; j <= i; ++j)
                cur[i].push_back(a[j]);
            compress(cur[i]);
        }
        for (int i = 1; i <= n; ++i) {
            f[i] = f[i-1] + 1;
            for (int j = i-1; j >= 1; --j) {
                if (a[j] > a[j+1]) break;
                int cnt = upper_bound(all(cur[j-1]), a[i]) - lower_bound(all(cur[j-1]), a[j]);
                if (cnt != 0) break;
                minimize(f[i], f[j-1] + 1); 
            }
        }
        cout << f[n];

        return;
    }
}
 
void solve() {

    cin >> n;
    for (int i = 1; i <= n; ++i)
        cin >> a[i];

    {
        if (one::one()) return one::solve();
    }
 
    return;
}
 
 
int main() {
 
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
 
    #define TASK "task"
    if (fopen(TASK".inp", "r")) {
        freopen(TASK".inp", "r", stdin);
        freopen(TASK".out", "w", stdout);
    }
 
    int t = 1;
    // cin >> t;
    while (t--) {
        solve();
    }
 
    return 0;
}

Compilation message

money.cpp: In function 'int main()':
money.cpp:103:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  103 |         freopen(TASK".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
money.cpp:104:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  104 |         freopen(TASK".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 9.0

# 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 Incorrect 0 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# 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 Incorrect 0 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
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 Incorrect 0 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# 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 Incorrect 0 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -