oj.uz

Submission #97197

# Submission time Handle Problem Language Result Execution time Memory
97197 2019-02-14T10:05:14 Z Kastanda Schools (IZhO13_school) C++11
65 / 100
 2000 ms 21488 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
{
    int C[MXN * 4];
    ll S[MXN * 4];
    SegTree ()
    {
        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 &k, int id = 1, int l = 0, int r = MXN)
    {
        if (k <= 0) return (0LL);
        if (C[id] <= k)
            {k -= C[id]; return (S[id]);}
        return (_Get(k, rc, md, r) + _Get(k, lc, l, md));
    }
    ll Get(int k)
    {
        int tmp = k;
      	assert(C[1] >= tmp);
        ll ret = _Get(tmp);
        //assert(tmp == 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:52:10: 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:54:14: 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
65.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19064 KB Output is correct
2 Correct 19 ms 19200 KB Output is correct
3 Correct 18 ms 19048 KB Output is correct
4 Incorrect 17 ms 19072 KB Output isn't correct
5 Correct 15 ms 19164 KB Output is correct
6 Correct 19 ms 19184 KB Output is correct
7 Correct 23 ms 19192 KB Output is correct
8 Correct 24 ms 19092 KB Output is correct
9 Correct 25 ms 19192 KB Output is correct
10 Correct 21 ms 19200 KB Output is correct
11 Correct 22 ms 19192 KB Output is correct
12 Correct 26 ms 19192 KB Output is correct
13 Correct 50 ms 19428 KB Output is correct
14 Correct 95 ms 19756 KB Output is correct
15 Incorrect 112 ms 20308 KB Output isn't correct
16 Incorrect 191 ms 20556 KB Output isn't correct
17 Incorrect 1650 ms 20864 KB Output isn't correct
18 Incorrect 1648 ms 21084 KB Output isn't correct
19 Execution timed out 2037 ms 21188 KB Time limit exceeded
20 Execution timed out 2011 ms 21488 KB Time limit exceeded