#include "bits/stdc++.h"
using namespace std;
#define ln "\n"
#define dbg(x) cout << #x << " = " << x << ln
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define inf 2e18
#define fast_cin() \
ios_base::sync_with_stdio(false); \
cin.tie(NULL)
#define out(file) freopen(file, "w", stdout)
#define in(file) freopen(file, "r", stdin)
#define all(x) (x).begin(), (x).end()
#define sz(x) ((int)(x).size())
#define int long long
int MOD = 1e9 + 7;
const int N = 2e5 + 7;
int n, q;
int x[N];
void sub1() {
int cnt = 0;
int cur = 0;
while(q--) {
int u; cin >> u;
if(u < 0) {
cur = 0;
} else {
if(cur == 1) cnt++;
else cur = 1;
}
}
cout << cnt;
}
void sub2() {
vector<int> state(n+1, 0);
int ans = 0;
int cur = 0;
set<int> s;
for(int i = 1; i <= q; i++) {
// cout << x[i] << ' ' << *s.lower_bound(x[i])
if(*s.lower_bound(x[i]) == x[i]) {
ans++;
s.clear();
}
s.insert(x[i]);
// cout << ans << ' ';
}
cout << ans;
}
void full() {
set<int> s;
int ans = 0;
for(int i = 1; i <= q; i++) {
cin >> x[i];
if(x[i] > 0) {
if(*s.lower_bound(x[i]) == x[i]) {
ans++;
s.clear();
}
s.insert(x[i]);
} else {
x[i] = -x[i];
auto cur = s.lower_bound(x[i]);
if(*cur == x[i]) {
s.erase(*cur);
}
}
// cout << ans << ' ';
}
cout << ans;
}
signed main() {
fast_cin();
cin >> n >> q;
// if(n == 2) sub1();
// else {
// bool ok = 1;
// for(int i = 1; i <= q; i++) {
// cin >> x[i];
// if(x[i] < 0) ok = 0;
// }
// if(ok) sub2();
// }
full();
cerr << "\nTime: " << clock() * 1000 / CLOCKS_PER_SEC;
}
Compilation message
Main.cpp: In function 'void sub2()':
Main.cpp:43:7: warning: unused variable 'cur' [-Wunused-variable]
43 | int cur = 0;
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
11 ms |
2396 KB |
Output is correct |
5 |
Correct |
10 ms |
2276 KB |
Output is correct |
6 |
Correct |
10 ms |
2468 KB |
Output is correct |
7 |
Correct |
10 ms |
2392 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
11 ms |
2288 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
9 ms |
2396 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
11 ms |
2404 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
12 ms |
2452 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
10 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
15 ms |
2344 KB |
Output is correct |
3 |
Correct |
0 ms |
460 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
62 ms |
12124 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
12 ms |
2396 KB |
Output is correct |
8 |
Correct |
12 ms |
2396 KB |
Output is correct |
9 |
Correct |
17 ms |
2384 KB |
Output is correct |
10 |
Correct |
20 ms |
2376 KB |
Output is correct |
11 |
Correct |
20 ms |
2524 KB |
Output is correct |
12 |
Correct |
26 ms |
2760 KB |
Output is correct |
13 |
Correct |
30 ms |
2652 KB |
Output is correct |
14 |
Correct |
31 ms |
2640 KB |
Output is correct |
15 |
Correct |
32 ms |
2644 KB |
Output is correct |
16 |
Correct |
31 ms |
2640 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
16 ms |
2680 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
15 ms |
2664 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
372 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
468 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
464 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
464 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
11 ms |
2396 KB |
Output is correct |
5 |
Correct |
10 ms |
2276 KB |
Output is correct |
6 |
Correct |
10 ms |
2468 KB |
Output is correct |
7 |
Correct |
10 ms |
2392 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
11 ms |
2288 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
9 ms |
2396 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
11 ms |
2404 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
12 ms |
2452 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
10 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
344 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
15 ms |
2344 KB |
Output is correct |
23 |
Correct |
0 ms |
460 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
62 ms |
12124 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
27 |
Correct |
12 ms |
2396 KB |
Output is correct |
28 |
Correct |
12 ms |
2396 KB |
Output is correct |
29 |
Correct |
17 ms |
2384 KB |
Output is correct |
30 |
Correct |
20 ms |
2376 KB |
Output is correct |
31 |
Correct |
20 ms |
2524 KB |
Output is correct |
32 |
Correct |
26 ms |
2760 KB |
Output is correct |
33 |
Correct |
30 ms |
2652 KB |
Output is correct |
34 |
Correct |
31 ms |
2640 KB |
Output is correct |
35 |
Correct |
32 ms |
2644 KB |
Output is correct |
36 |
Correct |
31 ms |
2640 KB |
Output is correct |
37 |
Correct |
1 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
16 ms |
2680 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
15 ms |
2664 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
0 ms |
372 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
0 ms |
348 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
468 KB |
Output is correct |
55 |
Correct |
0 ms |
348 KB |
Output is correct |
56 |
Correct |
0 ms |
348 KB |
Output is correct |
57 |
Correct |
0 ms |
348 KB |
Output is correct |
58 |
Correct |
0 ms |
464 KB |
Output is correct |
59 |
Correct |
0 ms |
348 KB |
Output is correct |
60 |
Correct |
0 ms |
348 KB |
Output is correct |
61 |
Correct |
0 ms |
348 KB |
Output is correct |
62 |
Correct |
0 ms |
348 KB |
Output is correct |
63 |
Correct |
0 ms |
348 KB |
Output is correct |
64 |
Correct |
0 ms |
348 KB |
Output is correct |
65 |
Correct |
0 ms |
348 KB |
Output is correct |
66 |
Correct |
0 ms |
348 KB |
Output is correct |
67 |
Correct |
0 ms |
348 KB |
Output is correct |
68 |
Correct |
0 ms |
464 KB |
Output is correct |
69 |
Correct |
1 ms |
348 KB |
Output is correct |
70 |
Correct |
0 ms |
348 KB |
Output is correct |
71 |
Correct |
0 ms |
604 KB |
Output is correct |
72 |
Correct |
12 ms |
2512 KB |
Output is correct |
73 |
Correct |
11 ms |
2424 KB |
Output is correct |
74 |
Correct |
11 ms |
2396 KB |
Output is correct |
75 |
Correct |
11 ms |
2332 KB |
Output is correct |
76 |
Correct |
0 ms |
348 KB |
Output is correct |
77 |
Correct |
0 ms |
348 KB |
Output is correct |
78 |
Correct |
12 ms |
2396 KB |
Output is correct |
79 |
Correct |
0 ms |
348 KB |
Output is correct |
80 |
Correct |
9 ms |
2396 KB |
Output is correct |
81 |
Correct |
0 ms |
348 KB |
Output is correct |
82 |
Correct |
11 ms |
2396 KB |
Output is correct |
83 |
Correct |
0 ms |
348 KB |
Output is correct |
84 |
Correct |
10 ms |
2260 KB |
Output is correct |
85 |
Correct |
0 ms |
348 KB |
Output is correct |
86 |
Correct |
11 ms |
2396 KB |
Output is correct |
87 |
Correct |
0 ms |
348 KB |
Output is correct |
88 |
Correct |
61 ms |
12516 KB |
Output is correct |
89 |
Correct |
0 ms |
348 KB |
Output is correct |
90 |
Correct |
12 ms |
2196 KB |
Output is correct |
91 |
Correct |
12 ms |
2340 KB |
Output is correct |
92 |
Correct |
14 ms |
2396 KB |
Output is correct |
93 |
Correct |
17 ms |
2372 KB |
Output is correct |
94 |
Correct |
21 ms |
2652 KB |
Output is correct |
95 |
Correct |
25 ms |
2820 KB |
Output is correct |
96 |
Correct |
30 ms |
3100 KB |
Output is correct |
97 |
Correct |
32 ms |
3164 KB |
Output is correct |
98 |
Correct |
31 ms |
3152 KB |
Output is correct |
99 |
Correct |
31 ms |
3160 KB |
Output is correct |
100 |
Correct |
0 ms |
348 KB |
Output is correct |
101 |
Correct |
1 ms |
348 KB |
Output is correct |
102 |
Correct |
18 ms |
3148 KB |
Output is correct |
103 |
Correct |
0 ms |
348 KB |
Output is correct |
104 |
Correct |
16 ms |
3180 KB |
Output is correct |
105 |
Correct |
0 ms |
348 KB |
Output is correct |
106 |
Correct |
0 ms |
348 KB |
Output is correct |
107 |
Correct |
0 ms |
348 KB |
Output is correct |
108 |
Correct |
0 ms |
348 KB |
Output is correct |
109 |
Correct |
0 ms |
348 KB |
Output is correct |
110 |
Correct |
0 ms |
348 KB |
Output is correct |
111 |
Correct |
0 ms |
348 KB |
Output is correct |
112 |
Correct |
45 ms |
5232 KB |
Output is correct |
113 |
Correct |
53 ms |
4172 KB |
Output is correct |
114 |
Correct |
46 ms |
8052 KB |
Output is correct |
115 |
Correct |
35 ms |
3924 KB |
Output is correct |
116 |
Correct |
15 ms |
3160 KB |
Output is correct |
117 |
Correct |
0 ms |
348 KB |
Output is correct |
118 |
Correct |
11 ms |
2392 KB |
Output is correct |
119 |
Correct |
12 ms |
2500 KB |
Output is correct |
120 |
Correct |
14 ms |
2384 KB |
Output is correct |
121 |
Correct |
16 ms |
2452 KB |
Output is correct |
122 |
Correct |
19 ms |
2652 KB |
Output is correct |
123 |
Correct |
22 ms |
3004 KB |
Output is correct |
124 |
Correct |
27 ms |
3152 KB |
Output is correct |
125 |
Correct |
29 ms |
3388 KB |
Output is correct |
126 |
Correct |
28 ms |
3380 KB |
Output is correct |
127 |
Correct |
29 ms |
3412 KB |
Output is correct |
128 |
Correct |
18 ms |
3164 KB |
Output is correct |
129 |
Correct |
14 ms |
3292 KB |
Output is correct |
130 |
Correct |
0 ms |
348 KB |
Output is correct |
131 |
Correct |
0 ms |
348 KB |
Output is correct |
132 |
Correct |
1 ms |
344 KB |
Output is correct |
133 |
Correct |
1 ms |
348 KB |
Output is correct |
134 |
Correct |
0 ms |
348 KB |
Output is correct |