Submission #1232995

#	Time	Username	Problem	Language	Result	Execution time	Memory
1232995		adad	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	16 ms	5568 KiB

triusis

#include <bits/stdc++.h>
#define TASK ""
#define MASK(i) (1<<(i))
#define BIT(x, i) (((x)>>(i))&1)
#define int long long
#define fi   first
#define se   second
using namespace std;
const long long INF = 1e17, MOD = 1e9 + 7, MAX = 2e5 + 5;

int n, M, h[MAX], tmp[MAX];
vector <int> lis;

signed main() {
    if (fopen(TASK ".INP", "r")) {
        freopen(TASK ".INP", "r", stdin);
        freopen(TASK ".OUT", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> M;
    for(int i = 1; i <= n; i ++) cin >> h[i];
    int len = 0;
    for(int i = 1; i <= n; i ++) {
        if (M * i - h[i] >= 0) {
            tmp[len] = M * i - h[i];
            len ++;
        }
    }
    for(int i = 0; i < len; i ++) {
        auto pos = upper_bound(lis.begin(), lis.end(), tmp[i]);
        if (pos == lis.end()) lis.push_back(tmp[i]);
        else *pos = tmp[i];
    }
    cout << n - lis.size();
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         freopen(TASK ".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
triusis.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen(TASK ".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37