Submission #1087502

#	Time	Username	Problem	Language	Result	Execution time	Memory
1087502		HienTD	Room Temperature (JOI24_ho_t1)	C++14	100 / 100	73 ms	7248 KiB

Main

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

//#define USACO

#define             fi  first
#define             se  second
#define           TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define         ALL(v)  (v).begin(), (v).end()
#define         BIT(i)  (1LL << (i))
#define     MASK(x, i)  (((x) >> (i)) & 1)
#define      REP(i, v)  for( __typeof((v).begin()) i = (v).begin(); i != (v).end(); ++ i)
#define   FOR(i, a, b)  for(int i = (a), _b = (b); i <= _b; ++ i)
#define  FORD(i, b, a)  for(int i = (b), _a = (a); i >= _a; -- i)

const string NAME = "BAITAP";

const string name = "";

const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;
const int mod = 998244353;

const int mxN = 5e5 + 5;

int N, T;
vector<int> A(mxN);

void init(void){
    cin >> N >> T;
    FOR(i, 1, N){
        cin >> A[i];
        A[i] %= T;
    }
}

void process(void){
    sort(A.begin() + 1, A.begin() + 1 + N);
    int ans = A[N] - A[1];
    FOR(i, 1, N - 1){
        ans = min(ans, T - (A[i + 1] - A[i]));
    }
    cout << ((ans + 1) >> 1);
}

signed main(void){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    #ifdef LOCAL
        freopen((NAME + ".INP").c_str(), "r", stdin);
        freopen((NAME + ".OUT").c_str(), "w", stdout);
    #elif defined(USACO)
        freopen((name + ".in").c_str(), "r", stdin);
        freopen((name + ".out").c_str(), "w", stdout);
    #endif

    init();
    process();
    cerr << "\nTime elapsed: " << TIME << "s.\n";
}

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