Submission #1303660

#	Time	Username	Problem	Language	Result	Execution time	Memory
1303660		CodeLakVN	Room Temperature (JOI24_ho_t1)	C++20	50 / 100	2 ms	576 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define task "main"
#define F first
#define S second
#define ii pair<int, int>
#define il pair<int, long long>
#define li pair<long long, int>
#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define FOD(i, b, a) for(int i = (b); i >= (a); --i)
#define int long long

template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }

template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }

template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }

const int MAX_N = (int)5e5 + 5;

int n, t;
int a[MAX_N];

void solve() {
    cin >> n >> t;
    FOR(i, 1, n) cin >> a[i];

    sort(a + 1, a + n + 1);
    FOR(i, 2, n) {
        int x = (a[i] - a[1] + t - 1) / t, y = (a[i] - a[1]) / t;
        if (abs(a[i] - x * t - a[1]) <= abs(a[i] - y * t - a[1]))
            a[i] -= x * t;
        else
            a[i] -= y * t;
    }
    int l = *min_element(a + 1, a + n + 1), r = *max_element(a + 1, a + n + 1);
    cout << ((r - l + 1) >> 1);
}

int32_t main() {
    if (fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    bool multitest = 0;
    int numTest = 1;
    if (multitest) cin >> numTest;

    while (numTest--) {
        solve();
    }

    return 0;
}

/* Lak lu theo dieu nhac!!!! */

Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:55:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   55 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:56:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 5 / 5
• Subtask 3: 30 / 30
• Subtask 4: 0 / 35
• Subtask 5: 0 / 15