#include <bits/stdc++.h>
using namespace std;
const long long INF = 1e18;
struct cake{
int pv, v, c, p;
bool operator < (const cake &aux)const{
if(c != aux.c) return c < aux.c;
return v < aux.v;
}
};
cake a[200005], v[200005];
bool cmp(cake x, cake y){
if(x.v != y.v) return x.v < y.v;
if(x.c != y.c) return x.c < y.c;
return x.p < y.p;
}
int n, m;
long long Arb[800005];
int cnt[800005];
void update(int p, int v, int st = 1, int dr = n, int nod = 1){
if(st == dr){
Arb[nod] += v;
if(v > 0) ++cnt[nod];
else --cnt[nod];
return ;
}
int mij = (st + dr) / 2;
if(p <= mij) update(p, v, st, mij, nod * 2);
else update(p, v, mij + 1, dr, nod * 2 + 1);
Arb[nod] = Arb[nod * 2] + Arb[nod * 2 + 1];
cnt[nod] = cnt[nod * 2] + cnt[nod * 2 + 1];
}
long long query(int k, int st = 1, int dr = n, int nod = 1){
if(k == 0) return 0;
if(cnt[nod] <= k) return Arb[nod];
int mij = (st + dr) / 2;
if(cnt[nod * 2 + 1] >= k) return query(k, mij + 1, dr, nod * 2 + 1);
return Arb[nod * 2 + 1] + query(k - cnt[nod * 2 + 1], st, mij, nod * 2);
}
int l = 1, r;
long long calc(int st, int dr){
if(st > dr) return -INF;
while(r < dr) ++r, update(a[r].pv, a[r].v);
while(l > st) --l, update(a[l].pv, a[l].v);
while(l < st) update(a[l].pv, -a[l].v), ++l;
while(r > dr) update(a[r].pv, -a[r].v), --r;
if(dr - st + 1 < m - 2) return -INF;
return query(m - 2);
}
long long ans = -INF;
void solve(int st, int dr, int down, int up){
if(st > dr) return ;
int mij = (st + dr) / 2;
long long sol = -INF, best = 0;
for(int i = max(down, mij + m - 1); i <= up ; ++i){
long long val = calc(mij + 1, i - 1) - (a[i].c - a[mij].c) + a[i].v + a[mij].v;
if(val > sol){
sol = val;
best = i;
}
}
ans = max(ans, sol);
if(st == dr) return ;
solve(mij + 1, dr, best, up);
solve(st, mij - 1, down, best);
}
int main()
{
// freopen("1.in", "r", stdin);
scanf("%d%d", &n, &m);
for(int i = 1; i <= n ; ++i){
scanf("%d%d", &a[i].v, &a[i].c);
a[i].c *= 2; a[i].p = i;
v[i] = a[i];
}
sort(a + 1, a + n + 1);
sort(v + 1, v + n + 1, cmp);
for(int i = 1; i <= n ; ++i){
int st = 1, dr = n;
while(st <= dr){
int mij = (st + dr) / 2;
if(v[mij].v < a[i].v || (v[mij].v == a[i].v && v[mij].c < a[i].c) || ((v[mij].v == a[i].v && v[mij].c == a[i].c && v[mij].p <= a[i].p))) st = mij + 1;
else dr = mij - 1;
}
a[i].pv = dr;
}
solve(1, n - m + 1, m, n);
printf("%lld", ans);
return 0;
}
Compilation message
cake3.cpp: In function 'int main()':
cake3.cpp:90:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &n, &m);
~~~~~^~~~~~~~~~~~~~~~
cake3.cpp:92:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &a[i].v, &a[i].c);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
348 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
248 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
380 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
380 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
348 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
248 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
380 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
380 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
2 ms |
376 KB |
Output is correct |
38 |
Correct |
7 ms |
504 KB |
Output is correct |
39 |
Correct |
7 ms |
532 KB |
Output is correct |
40 |
Correct |
5 ms |
504 KB |
Output is correct |
41 |
Correct |
6 ms |
504 KB |
Output is correct |
42 |
Correct |
4 ms |
504 KB |
Output is correct |
43 |
Correct |
5 ms |
552 KB |
Output is correct |
44 |
Correct |
7 ms |
504 KB |
Output is correct |
45 |
Correct |
7 ms |
504 KB |
Output is correct |
46 |
Correct |
7 ms |
504 KB |
Output is correct |
47 |
Correct |
8 ms |
504 KB |
Output is correct |
48 |
Correct |
7 ms |
504 KB |
Output is correct |
49 |
Correct |
6 ms |
504 KB |
Output is correct |
50 |
Correct |
6 ms |
504 KB |
Output is correct |
51 |
Correct |
6 ms |
504 KB |
Output is correct |
52 |
Correct |
6 ms |
504 KB |
Output is correct |
53 |
Correct |
6 ms |
504 KB |
Output is correct |
54 |
Correct |
5 ms |
504 KB |
Output is correct |
55 |
Correct |
4 ms |
504 KB |
Output is correct |
56 |
Correct |
4 ms |
504 KB |
Output is correct |
57 |
Correct |
4 ms |
504 KB |
Output is correct |
58 |
Correct |
4 ms |
504 KB |
Output is correct |
59 |
Correct |
5 ms |
504 KB |
Output is correct |
60 |
Correct |
6 ms |
504 KB |
Output is correct |
61 |
Correct |
5 ms |
504 KB |
Output is correct |
62 |
Correct |
4 ms |
504 KB |
Output is correct |
63 |
Correct |
5 ms |
504 KB |
Output is correct |
64 |
Correct |
5 ms |
504 KB |
Output is correct |
65 |
Correct |
7 ms |
504 KB |
Output is correct |
66 |
Correct |
6 ms |
632 KB |
Output is correct |
67 |
Correct |
7 ms |
504 KB |
Output is correct |
68 |
Correct |
6 ms |
504 KB |
Output is correct |
69 |
Correct |
6 ms |
504 KB |
Output is correct |
70 |
Correct |
6 ms |
504 KB |
Output is correct |
71 |
Correct |
6 ms |
504 KB |
Output is correct |
72 |
Correct |
4 ms |
504 KB |
Output is correct |
73 |
Correct |
6 ms |
504 KB |
Output is correct |
74 |
Correct |
4 ms |
632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
380 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
348 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
380 KB |
Output is correct |
16 |
Correct |
2 ms |
248 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
380 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
2 ms |
380 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
504 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
376 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
35 |
Correct |
2 ms |
376 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
2 ms |
376 KB |
Output is correct |
38 |
Correct |
7 ms |
504 KB |
Output is correct |
39 |
Correct |
7 ms |
532 KB |
Output is correct |
40 |
Correct |
5 ms |
504 KB |
Output is correct |
41 |
Correct |
6 ms |
504 KB |
Output is correct |
42 |
Correct |
4 ms |
504 KB |
Output is correct |
43 |
Correct |
5 ms |
552 KB |
Output is correct |
44 |
Correct |
7 ms |
504 KB |
Output is correct |
45 |
Correct |
7 ms |
504 KB |
Output is correct |
46 |
Correct |
7 ms |
504 KB |
Output is correct |
47 |
Correct |
8 ms |
504 KB |
Output is correct |
48 |
Correct |
7 ms |
504 KB |
Output is correct |
49 |
Correct |
6 ms |
504 KB |
Output is correct |
50 |
Correct |
6 ms |
504 KB |
Output is correct |
51 |
Correct |
6 ms |
504 KB |
Output is correct |
52 |
Correct |
6 ms |
504 KB |
Output is correct |
53 |
Correct |
6 ms |
504 KB |
Output is correct |
54 |
Correct |
5 ms |
504 KB |
Output is correct |
55 |
Correct |
4 ms |
504 KB |
Output is correct |
56 |
Correct |
4 ms |
504 KB |
Output is correct |
57 |
Correct |
4 ms |
504 KB |
Output is correct |
58 |
Correct |
4 ms |
504 KB |
Output is correct |
59 |
Correct |
5 ms |
504 KB |
Output is correct |
60 |
Correct |
6 ms |
504 KB |
Output is correct |
61 |
Correct |
5 ms |
504 KB |
Output is correct |
62 |
Correct |
4 ms |
504 KB |
Output is correct |
63 |
Correct |
5 ms |
504 KB |
Output is correct |
64 |
Correct |
5 ms |
504 KB |
Output is correct |
65 |
Correct |
7 ms |
504 KB |
Output is correct |
66 |
Correct |
6 ms |
632 KB |
Output is correct |
67 |
Correct |
7 ms |
504 KB |
Output is correct |
68 |
Correct |
6 ms |
504 KB |
Output is correct |
69 |
Correct |
6 ms |
504 KB |
Output is correct |
70 |
Correct |
6 ms |
504 KB |
Output is correct |
71 |
Correct |
6 ms |
504 KB |
Output is correct |
72 |
Correct |
4 ms |
504 KB |
Output is correct |
73 |
Correct |
6 ms |
504 KB |
Output is correct |
74 |
Correct |
4 ms |
632 KB |
Output is correct |
75 |
Correct |
1398 ms |
15972 KB |
Output is correct |
76 |
Correct |
1668 ms |
15736 KB |
Output is correct |
77 |
Correct |
1221 ms |
16120 KB |
Output is correct |
78 |
Correct |
1375 ms |
16120 KB |
Output is correct |
79 |
Correct |
212 ms |
16248 KB |
Output is correct |
80 |
Correct |
316 ms |
15992 KB |
Output is correct |
81 |
Correct |
1413 ms |
15324 KB |
Output is correct |
82 |
Correct |
1768 ms |
15572 KB |
Output is correct |
83 |
Correct |
1625 ms |
15736 KB |
Output is correct |
84 |
Correct |
1678 ms |
15744 KB |
Output is correct |
85 |
Correct |
1434 ms |
15452 KB |
Output is correct |
86 |
Correct |
766 ms |
14968 KB |
Output is correct |
87 |
Correct |
835 ms |
14968 KB |
Output is correct |
88 |
Correct |
1246 ms |
15076 KB |
Output is correct |
89 |
Correct |
1177 ms |
15352 KB |
Output is correct |
90 |
Correct |
804 ms |
15848 KB |
Output is correct |
91 |
Correct |
519 ms |
14968 KB |
Output is correct |
92 |
Correct |
534 ms |
15048 KB |
Output is correct |
93 |
Correct |
636 ms |
15380 KB |
Output is correct |
94 |
Correct |
453 ms |
15736 KB |
Output is correct |
95 |
Correct |
766 ms |
15776 KB |
Output is correct |
96 |
Correct |
684 ms |
15152 KB |
Output is correct |
97 |
Correct |
729 ms |
15728 KB |
Output is correct |
98 |
Correct |
755 ms |
15608 KB |
Output is correct |
99 |
Correct |
708 ms |
15740 KB |
Output is correct |
100 |
Correct |
559 ms |
15224 KB |
Output is correct |
101 |
Correct |
583 ms |
15224 KB |
Output is correct |
102 |
Correct |
1256 ms |
15100 KB |
Output is correct |
103 |
Correct |
1181 ms |
15012 KB |
Output is correct |
104 |
Correct |
1383 ms |
15480 KB |
Output is correct |
105 |
Correct |
1056 ms |
15352 KB |
Output is correct |
106 |
Correct |
1028 ms |
15736 KB |
Output is correct |
107 |
Correct |
884 ms |
15324 KB |
Output is correct |
108 |
Correct |
1185 ms |
15924 KB |
Output is correct |
109 |
Correct |
928 ms |
16504 KB |
Output is correct |
110 |
Correct |
566 ms |
14520 KB |
Output is correct |
111 |
Correct |
807 ms |
14788 KB |
Output is correct |
112 |
Correct |
866 ms |
14416 KB |
Output is correct |
113 |
Correct |
220 ms |
16632 KB |
Output is correct |