oj.uz

Submission #97198

# Submission time Handle Problem Language Result Execution time Memory
97198 2019-02-14T10:13:22 Z Kastanda Schools (IZhO13_school) C++11
100 / 100
 263 ms 52708 KB 
#include<bits/stdc++.h>
#define lc (id << 1)
#define rc (id << 1 ^ 1)
#define md ((l + r) >> 1)
using namespace std;
typedef long long ll;
template < int MXN >
struct SegTree
{
    ll K = 0;
    ll C[MXN * 8];
    ll S[MXN * 8];
    SegTree ()
    {
        K = 0;
        memset(C, 0, sizeof(C));
        memset(S, 0, sizeof(S));
    }
    void Add(int i, int val, int id = 1, int l = 0, int r = MXN)
    {
        if (r - l < 2)
        {
            S[id] += 1LL * val * i;
            C[id] += val; return ;
        }
        if (i < md)
            Add(i, val, lc, l, md);
        else
            Add(i, val, rc, md, r);
        C[id] = C[lc] + C[rc];
        S[id] = S[lc] + S[rc];
    }
    ll _Get(int id = 1, int l = 0, int r = MXN)
    {
        if (K == 0)
            return (0LL);
        if (C[id] <= K)
        {
            K -= C[id];
            return (S[id]);
        }
        if (r - l < 2)
        {
            ll ret = K * l;
            K = 0;
            return (ret);
        }
        return (_Get(rc, md, r) + _Get(lc, l, md));
    }
    ll Get(int k)
    {
        K = k;
        ll ret = _Get();
        assert(K == 0);
        return (ret);
    }
};
const int N = 300005, MXN = 100005;
int n, R, M;
pair < int , int > A[N];
int32_t main()
{
    scanf("%d%d%d", &n, &R, &M);
    for (int i = 0; i < n; i++)
        scanf("%d%d", &A[i].first, &A[i].second);
    sort(A, A + n); reverse(A, A + n);
    SegTree < MXN * 2 > P, S;
    for (int i = 0; i < n; i++)
        S.Add(A[i].second, 1);
    ll Mx = 0, sum = 0;
    for (int i = 0; i < R + M; i++)
    {
        sum += A[i].first;
        S.Add(A[i].second, -1);
        P.Add(A[i].second - A[i].first + MXN, 1);
        if (i >= R - 1)
            Mx = max(Mx, sum + P.Get(i + 1 - R) - 1LL * (i + 1 - R) * MXN + S.Get(M - (i + 1 - R)));
    }
    return !printf("%lld\n", Mx);
}

Compilation message

school.cpp: In function 'int32_t main()':
school.cpp:63:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &R, &M);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
school.cpp:65:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &A[i].first, &A[i].second);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 50424 KB Output is correct
2 Correct 45 ms 50424 KB Output is correct
3 Correct 40 ms 50428 KB Output is correct
4 Correct 40 ms 50424 KB Output is correct
5 Correct 37 ms 50424 KB Output is correct
6 Correct 43 ms 50432 KB Output is correct
7 Correct 48 ms 50424 KB Output is correct
8 Correct 41 ms 50424 KB Output is correct
9 Correct 43 ms 50596 KB Output is correct
10 Correct 52 ms 50424 KB Output is correct
11 Correct 51 ms 50436 KB Output is correct
12 Correct 47 ms 50424 KB Output is correct
13 Correct 83 ms 50680 KB Output is correct
14 Correct 105 ms 51068 KB Output is correct
15 Correct 135 ms 51704 KB Output is correct
16 Correct 241 ms 51836 KB Output is correct
17 Correct 259 ms 52092 KB Output is correct
18 Correct 221 ms 52352 KB Output is correct
19 Correct 263 ms 52472 KB Output is correct
20 Correct 251 ms 52708 KB Output is correct