Submission #730131

#	Time	Username	Problem	Language	Result	Execution time	Memory
730131		baojiaopisu	Measures (CEOI22_measures)	C++14	0 / 100	1570 ms	340 KiB

Main

#include<bits/stdc++.h>

using namespace std;

using ll = long long;
using ld = long double;
using ull = unsigned long long;

using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pld = pair<ld, ld>;

#define fi first
#define se second
#define left BAO
#define right ANH
#define pb push_back
#define pf push_front
#define mp make_pair
#define ins insert
#define btpc __builtin_popcount
#define btclz __builtin_clz

#define sz(x) (int)(x.size());
#define all(x) x.begin(), x.end()
#define debug(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int d4x[4] = {1, 0, -1, 0}; int d4y[4] = {0, 1, 0, -1};
int d8x[8] = {0, 1, 1, 1, 0, -1, -1, -1};
int d8y[8] = {1, 1, 0, -1, -1, -1, 0, 1};

template<class X, class Y>
    bool minimize(X &x, const Y &y) {
        if (x > y)
        {
            x = y;
            return true;
        }
        return false;
    }
template<class X, class Y>
    bool maximize(X &x, const Y &y) {
        if (x < y)
        {
            x = y;
            return true;
        }
        return false;
    }

const int MOD = 1e9 + 7; //998244353

template<class X, class Y>
	void add(X &x, const Y &y) {
		x = (x + y);
		if(x >= MOD) x -= MOD;
	}

template<class X, class Y> 
	void sub(X &x, const Y &y) {
		x = (x - y);
		if(x < 0) x += MOD;
	}

/* Author : Le Ngoc Bao Anh, 12A5, LQD High School for Gifted Student*/

const ll INF = 1e9;
const int N = 1e5 + 10;

ld a[N], p[N], b[N];

void BaoJiaoPisu() {
	int n, m; ld d; cin >> n >> m >> d;
	for(int i = 1; i <= n; i++) cin >> a[i];
	for(int i = 1; i <= m; i++) cin >> b[i];
	cout << fixed;
	cout << setprecision(1);
	if(m <= 10) {
		for(int t = 1; t <= m; t++) {
			a[++n] = b[t];
			sort(a + 1, a + 1 + n);
			ld l = 0, r = 1e15, ans = 0;
			for(int rep = 1; rep <= 60; rep++) {
				bool ok = true;
				ld mid = (l + r) / 2;
				p[1] = a[1] - mid;
				for(int i = 2; i <= n; i++) {
					p[i] = max(p[i - 1] + d, a[i] - mid);
					if(p[i] > a[i] + mid) {
						ok = false;
						break;
					}
				}

				if(ok) {
					ans = mid;
					r = mid;
				} else l = mid;
			}
			ll res = ans;
			ld tt = ans - res;
			if(tt < 1.0 / 2) cout << res << " ";
			else cout << ans << ' ';
		}
	}
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #else 
    //online
    #endif

    int tc = 1, ddd = 0;
    // cin >> tc;
    while(tc--) {
        //ddd++;
        //cout << "Case #" << ddd << ": ";
        BaoJiaoPisu();
    }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:120:17: warning: unused variable 'ddd' [-Wunused-variable]
  120 |     int tc = 1, ddd = 0;
      |                 ^~~
Main.cpp:114:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  114 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:115:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  115 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 35
• Subtask 4: 0 / 41