Submission #1097168

#	Time	Username	Problem	Language	Result	Execution time	Memory
1097168		papi	Global Warming (CEOI18_glo)	C++14	10 / 100	27 ms	3160 KiB

glo

#include <bits/stdc++.h>
#define fi first
#define se second
#define I2 pair <int, int>
#define L2 pair <long long, long long>
#define IL pair <int, long long>
#define LI pair <long long, int>

using namespace std;

const int MAXN = 1e6 + 7, MOD = 1e9 + 7, base = 31;
const long long oo = 1e18;
int DX[] = {0, -1, 0, 1}, DY[] = {-1, 0, 1, 0};

int n, ans;
int lis[MAXN], a[MAXN];

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    if (fopen("TEXT.INP", "r")){
        freopen("TEXT.INP", "r", stdin);
        freopen("TEXT.OUT", "w", stdout);
    }
    int x;
    cin >> n >> x;
    for (int i = 1; i <= n; i++){
        cin >> a[i];
    }
    ans = 1;
    lis[1] = a[1];
    for (int i = 2; i <= n; i++){
        int k = lower_bound(lis + 1, lis + ans + 1, a[i]) - lis;
        lis[k] = a[i];
        ans = max(ans, k);
    }
    cout << ans;
    return 0;
}

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:22:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         freopen("TEXT.INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
glo.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         freopen("TEXT.OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 13
• Subtask 4: 10 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25