#include <bits/stdc++.h>
#define pb push_back
#define lb lower_bound
#define fi first
#define se second
#define mup(a,x) a=min(a,x)
#define Mup(a,x) a=max(a,x)
#define INF 1234567890
using namespace std;
typedef long long LL;
typedef pair<int,int> pii;
int N, M, ans;
int T[1606060], lz[1606060];
pii A[404040];
vector<int> S[202020];
void busy(int id){
T[id*2] += lz[id], T[id*2+1] += lz[id];
lz[id*2] += lz[id], lz[id*2+1] += lz[id];
lz[id] = 0;
}
void upd(int id, int s, int e, int ts, int te, int v){
if (e < ts || te < s) return;
if (ts <= s && e <= te){T[id] += v, lz[id] += v; return;}
busy(id);
int m = s+e>>1;
upd(id*2, s, m, ts, te, v);
upd(id*2+1, m+1, e, ts, te, v);
T[id] = min(T[id*2], T[id*2+1]);
}
int main(){
scanf("%d", &N);
for (int i=1; i<=N; i++){
scanf("%d %d", &A[i].se, &A[i].fi);
A[i].fi = A[i].fi*2;
}
for (int i=N+1; i<=2*N; i++){
scanf("%d %d", &A[i].se, &A[i].fi);
A[i].fi = A[i].fi*2+1;
}
sort(A+1, A+2*N+1);
for (int i=1; i<=2*N; i++) upd(1, 1, 2*N, i, 2*N, (A[i].fi&1)?-1:1);
for (int i=1; i<=2*N; i++){
if (A[i].fi & 1){
if (S[A[i].se].size()){
upd(1, 1, 2*N, S[A[i].se].back(), i-1, -1);
if (T[1] >= 0) S[A[i].se].pop_back();
else upd(1, 1, 2*N, S[A[i].se].back(), i-1, 1), ans++;
}
else ans++;
}
else S[A[i].se].pb(i);
}
printf("%d\n", ans);
return 0;
}
Compilation message
worst_reporter2.cpp: In function 'void upd(int, int, int, int, int, int)':
worst_reporter2.cpp:28:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int m = s+e>>1;
~^~
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:35:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &N);
~~~~~^~~~~~~~~~
worst_reporter2.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &A[i].se, &A[i].fi);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
worst_reporter2.cpp:41:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &A[i].se, &A[i].fi);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
5120 KB |
Output is correct |
2 |
Correct |
3 ms |
5120 KB |
Output is correct |
3 |
Correct |
3 ms |
5120 KB |
Output is correct |
4 |
Correct |
3 ms |
5120 KB |
Output is correct |
5 |
Correct |
3 ms |
5120 KB |
Output is correct |
6 |
Correct |
3 ms |
5120 KB |
Output is correct |
7 |
Correct |
4 ms |
5120 KB |
Output is correct |
8 |
Correct |
3 ms |
5120 KB |
Output is correct |
9 |
Correct |
3 ms |
5120 KB |
Output is correct |
10 |
Correct |
3 ms |
5120 KB |
Output is correct |
11 |
Correct |
3 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
5120 KB |
Output is correct |
2 |
Correct |
3 ms |
5120 KB |
Output is correct |
3 |
Correct |
3 ms |
5120 KB |
Output is correct |
4 |
Correct |
3 ms |
5120 KB |
Output is correct |
5 |
Correct |
3 ms |
5120 KB |
Output is correct |
6 |
Correct |
3 ms |
5120 KB |
Output is correct |
7 |
Correct |
4 ms |
5120 KB |
Output is correct |
8 |
Correct |
3 ms |
5120 KB |
Output is correct |
9 |
Correct |
3 ms |
5120 KB |
Output is correct |
10 |
Correct |
3 ms |
5120 KB |
Output is correct |
11 |
Correct |
3 ms |
5120 KB |
Output is correct |
12 |
Correct |
3 ms |
5120 KB |
Output is correct |
13 |
Correct |
3 ms |
5120 KB |
Output is correct |
14 |
Correct |
4 ms |
5120 KB |
Output is correct |
15 |
Correct |
3 ms |
5120 KB |
Output is correct |
16 |
Correct |
4 ms |
5120 KB |
Output is correct |
17 |
Correct |
3 ms |
5120 KB |
Output is correct |
18 |
Correct |
3 ms |
5120 KB |
Output is correct |
19 |
Correct |
3 ms |
5120 KB |
Output is correct |
20 |
Correct |
3 ms |
5120 KB |
Output is correct |
21 |
Correct |
3 ms |
5120 KB |
Output is correct |
22 |
Correct |
3 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
5120 KB |
Output is correct |
2 |
Correct |
3 ms |
5120 KB |
Output is correct |
3 |
Correct |
3 ms |
5120 KB |
Output is correct |
4 |
Correct |
3 ms |
5120 KB |
Output is correct |
5 |
Correct |
3 ms |
5120 KB |
Output is correct |
6 |
Correct |
3 ms |
5120 KB |
Output is correct |
7 |
Correct |
4 ms |
5120 KB |
Output is correct |
8 |
Correct |
3 ms |
5120 KB |
Output is correct |
9 |
Correct |
3 ms |
5120 KB |
Output is correct |
10 |
Correct |
3 ms |
5120 KB |
Output is correct |
11 |
Correct |
3 ms |
5120 KB |
Output is correct |
12 |
Correct |
3 ms |
5120 KB |
Output is correct |
13 |
Correct |
3 ms |
5120 KB |
Output is correct |
14 |
Correct |
4 ms |
5120 KB |
Output is correct |
15 |
Correct |
3 ms |
5120 KB |
Output is correct |
16 |
Correct |
4 ms |
5120 KB |
Output is correct |
17 |
Correct |
3 ms |
5120 KB |
Output is correct |
18 |
Correct |
3 ms |
5120 KB |
Output is correct |
19 |
Correct |
3 ms |
5120 KB |
Output is correct |
20 |
Correct |
3 ms |
5120 KB |
Output is correct |
21 |
Correct |
3 ms |
5120 KB |
Output is correct |
22 |
Correct |
3 ms |
5120 KB |
Output is correct |
23 |
Correct |
10 ms |
5632 KB |
Output is correct |
24 |
Correct |
10 ms |
5632 KB |
Output is correct |
25 |
Correct |
10 ms |
5632 KB |
Output is correct |
26 |
Correct |
11 ms |
5632 KB |
Output is correct |
27 |
Correct |
9 ms |
5632 KB |
Output is correct |
28 |
Correct |
10 ms |
5504 KB |
Output is correct |
29 |
Correct |
10 ms |
5504 KB |
Output is correct |
30 |
Correct |
10 ms |
5504 KB |
Output is correct |
31 |
Correct |
15 ms |
5632 KB |
Output is correct |
32 |
Correct |
9 ms |
5532 KB |
Output is correct |
33 |
Correct |
9 ms |
5520 KB |
Output is correct |
34 |
Correct |
10 ms |
5504 KB |
Output is correct |
35 |
Correct |
9 ms |
5504 KB |
Output is correct |
36 |
Correct |
11 ms |
5504 KB |
Output is correct |
37 |
Correct |
8 ms |
5504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
5120 KB |
Output is correct |
2 |
Correct |
3 ms |
5120 KB |
Output is correct |
3 |
Correct |
3 ms |
5120 KB |
Output is correct |
4 |
Correct |
3 ms |
5120 KB |
Output is correct |
5 |
Correct |
3 ms |
5120 KB |
Output is correct |
6 |
Correct |
3 ms |
5120 KB |
Output is correct |
7 |
Correct |
4 ms |
5120 KB |
Output is correct |
8 |
Correct |
3 ms |
5120 KB |
Output is correct |
9 |
Correct |
3 ms |
5120 KB |
Output is correct |
10 |
Correct |
3 ms |
5120 KB |
Output is correct |
11 |
Correct |
3 ms |
5120 KB |
Output is correct |
12 |
Correct |
3 ms |
5120 KB |
Output is correct |
13 |
Correct |
3 ms |
5120 KB |
Output is correct |
14 |
Correct |
4 ms |
5120 KB |
Output is correct |
15 |
Correct |
3 ms |
5120 KB |
Output is correct |
16 |
Correct |
4 ms |
5120 KB |
Output is correct |
17 |
Correct |
3 ms |
5120 KB |
Output is correct |
18 |
Correct |
3 ms |
5120 KB |
Output is correct |
19 |
Correct |
3 ms |
5120 KB |
Output is correct |
20 |
Correct |
3 ms |
5120 KB |
Output is correct |
21 |
Correct |
3 ms |
5120 KB |
Output is correct |
22 |
Correct |
3 ms |
5120 KB |
Output is correct |
23 |
Correct |
10 ms |
5632 KB |
Output is correct |
24 |
Correct |
10 ms |
5632 KB |
Output is correct |
25 |
Correct |
10 ms |
5632 KB |
Output is correct |
26 |
Correct |
11 ms |
5632 KB |
Output is correct |
27 |
Correct |
9 ms |
5632 KB |
Output is correct |
28 |
Correct |
10 ms |
5504 KB |
Output is correct |
29 |
Correct |
10 ms |
5504 KB |
Output is correct |
30 |
Correct |
10 ms |
5504 KB |
Output is correct |
31 |
Correct |
15 ms |
5632 KB |
Output is correct |
32 |
Correct |
9 ms |
5532 KB |
Output is correct |
33 |
Correct |
9 ms |
5520 KB |
Output is correct |
34 |
Correct |
10 ms |
5504 KB |
Output is correct |
35 |
Correct |
9 ms |
5504 KB |
Output is correct |
36 |
Correct |
11 ms |
5504 KB |
Output is correct |
37 |
Correct |
8 ms |
5504 KB |
Output is correct |
38 |
Correct |
376 ms |
26744 KB |
Output is correct |
39 |
Correct |
359 ms |
25592 KB |
Output is correct |
40 |
Correct |
347 ms |
25720 KB |
Output is correct |
41 |
Correct |
366 ms |
25604 KB |
Output is correct |
42 |
Correct |
342 ms |
25720 KB |
Output is correct |
43 |
Correct |
334 ms |
21112 KB |
Output is correct |
44 |
Correct |
329 ms |
21240 KB |
Output is correct |
45 |
Correct |
336 ms |
21240 KB |
Output is correct |
46 |
Correct |
381 ms |
21752 KB |
Output is correct |
47 |
Correct |
319 ms |
22776 KB |
Output is correct |
48 |
Correct |
310 ms |
20472 KB |
Output is correct |
49 |
Correct |
298 ms |
20472 KB |
Output is correct |
50 |
Correct |
295 ms |
20600 KB |
Output is correct |
51 |
Correct |
355 ms |
21112 KB |
Output is correct |
52 |
Correct |
283 ms |
21112 KB |
Output is correct |