Submission #571245

#	Time	Username	Problem	Language	Result	Execution time	Memory
571245		YouAreMyGalaxy	Snowball (JOI21_ho_t2)	C++17	100 / 100	124 ms	12976 KiB

Main

//Make CSP great again
//Vengeance
#include <bits/stdc++.h>
#define TASK "TESTCODE"
#define Log2(x) 31 - __builtin_clz(x)
using namespace std;
const int N = 2e5;
const long long oo = 1e18 + 10;
long long x[N + 1], l[N + 1], r[N + 1], cur, MaxLeft = 0, MaxRight = 0;
int n, q, id[N + 1];
void read()
{
    cin >> n >> q;
    for (int i = 1; i <= n; ++ i)
    {
        cin >> x[i];
        id[i] = i;
        l[i] = -oo;
        r[i] = oo;
    }
    sort(id + 1, id + n, [&](const int &a, const int &b)
         {
             return x[a + 1] - x[a] < x[b + 1] - x[b];
         });
}
void solve()
{
    int i = 1;
    while(q--)
    {
        long long w;
        cin >> w;
        cur += w;
        MaxRight = max(MaxRight, cur);
        MaxLeft = min(MaxLeft, cur);
        for (; i < n && x[id[i] + 1] - x[id[i]] <= MaxRight - MaxLeft; ++ i)
        {
            int j = id[i];
            if (w > 0)
            {
                r[j] = x[j + 1] + MaxLeft - 1;
                l[j + 1] = x[j + 1] + MaxLeft;
            }
            else
            {
                l[j + 1] = x[j] + MaxRight;
                r[j] = x[j] + MaxRight - 1;
            }
        }
    }
    for (int i = 1; i <= n; ++ i)
    {
        //cerr << l[i] << ' ' << r[i] << '\n';
        long long L = (l[i] == -oo ? x[i] + MaxLeft : l[i]), R = (r[i] == oo ? x[i] + MaxRight - 1 : r[i]);
        //cerr << L << ' ' << R << '\n';
        cout << R - L + 1 << '\n';
    }
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen(TASK".INP", "r"))
    {
        freopen(TASK".INP", "r", stdin);
        //freopen(TASK".OUT", "w", stdout);
    }
    int t = 1;
    bool typetest = false;
    if (typetest)
    {
        cin >> t;
    }
    for (int __ = 1; __ <= t; ++ __)
    {
        //cout << "Case " << __ << ": ";
        read();
        solve();
    }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen(TASK".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 33 / 33
• Subtask 2: 67 / 67