#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second
const int N = 5e5 + 5;
int x[N], sum[N];
vector<int> a[N];
vector<pair<int, int>> v, ans1, ans2;
int main() {
//ios_base::sync_with_stdio(false); cin.tie(NULL);
int l, r;
cin >> l >> r;
for (int i = 1; i <= r; i++) {
cin >> x[i];
for (int j = 0; j < x[i]; j++) {
int x2;
cin >> x2;
a[i].push_back(x2);
sum[i] += x2;
}
}
for (int i = 1; i <= r; i++) {
v.clear();
if (sum[i] == l) {
ans1.push_back({1, l});
break;
}
int sum1 = 0, sum2 = sum[i];
v.push_back({sum1 + 1, l - sum2});
for (int j = 0; j < x[i]; j++) {
sum1 += a[i][j], sum2 -= a[i][j];
v.push_back({sum1 + 1, l - sum2});
}
for (int j = 1; j < (int)v.size(); j++) {
if (v[j].fi <= v[j - 1].se) continue;
ans1.push_back({v[j - 1].se + 1, v[j].fi - 1});
}
// cout << i << "flaw\n";
// for (auto j : v) cout << j.fi << " " << j.se << "fkwoa\n";
}
sort(ans1.begin(), ans1.end());
// for (auto i : ans1) cout << i.fi << " " << i.se << "dkawop\n";
for (auto y : ans1) {
if (ans2.empty()) ans2.push_back(y);
else {
if (y.fi <= ans2.back().se) ans2.back().se = max(ans2.back().se, y.se);
else ans2.push_back(y);
}
}
int ans = 0;
for (auto y : ans2) ans += y.se - y.fi + 1;
cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
11988 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11956 KB |
Output is correct |
5 |
Correct |
6 ms |
12056 KB |
Output is correct |
6 |
Correct |
6 ms |
12064 KB |
Output is correct |
7 |
Correct |
5 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
12028 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
11988 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11956 KB |
Output is correct |
5 |
Correct |
6 ms |
12056 KB |
Output is correct |
6 |
Correct |
6 ms |
12064 KB |
Output is correct |
7 |
Correct |
5 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
12028 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
212 ms |
31132 KB |
Output is correct |
13 |
Correct |
6 ms |
11988 KB |
Output is correct |
14 |
Correct |
7 ms |
11988 KB |
Output is correct |
15 |
Correct |
5 ms |
11988 KB |
Output is correct |
16 |
Correct |
6 ms |
12104 KB |
Output is correct |
17 |
Correct |
245 ms |
33692 KB |
Output is correct |
18 |
Correct |
6 ms |
11988 KB |
Output is correct |
19 |
Correct |
6 ms |
11988 KB |
Output is correct |
20 |
Correct |
5 ms |
11988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
58 ms |
17872 KB |
Output is correct |
2 |
Correct |
19 ms |
13388 KB |
Output is correct |
3 |
Correct |
19 ms |
13396 KB |
Output is correct |
4 |
Correct |
62 ms |
20092 KB |
Output is correct |
5 |
Correct |
30 ms |
16088 KB |
Output is correct |
6 |
Correct |
58 ms |
20512 KB |
Output is correct |
7 |
Correct |
7 ms |
12192 KB |
Output is correct |
8 |
Correct |
65 ms |
19904 KB |
Output is correct |
9 |
Correct |
35 ms |
16832 KB |
Output is correct |
10 |
Correct |
64 ms |
19812 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
5 ms |
11988 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
7 ms |
11988 KB |
Output is correct |
5 |
Correct |
6 ms |
11980 KB |
Output is correct |
6 |
Correct |
6 ms |
12056 KB |
Output is correct |
7 |
Correct |
6 ms |
12060 KB |
Output is correct |
8 |
Correct |
6 ms |
12060 KB |
Output is correct |
9 |
Correct |
6 ms |
12116 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
58 ms |
17872 KB |
Output is correct |
2 |
Correct |
19 ms |
13388 KB |
Output is correct |
3 |
Correct |
19 ms |
13396 KB |
Output is correct |
4 |
Correct |
62 ms |
20092 KB |
Output is correct |
5 |
Correct |
30 ms |
16088 KB |
Output is correct |
6 |
Correct |
58 ms |
20512 KB |
Output is correct |
7 |
Correct |
7 ms |
12192 KB |
Output is correct |
8 |
Correct |
65 ms |
19904 KB |
Output is correct |
9 |
Correct |
35 ms |
16832 KB |
Output is correct |
10 |
Correct |
64 ms |
19812 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
5 ms |
11988 KB |
Output is correct |
13 |
Correct |
6 ms |
11988 KB |
Output is correct |
14 |
Correct |
7 ms |
11988 KB |
Output is correct |
15 |
Correct |
6 ms |
11980 KB |
Output is correct |
16 |
Correct |
6 ms |
12056 KB |
Output is correct |
17 |
Correct |
6 ms |
12060 KB |
Output is correct |
18 |
Correct |
6 ms |
12060 KB |
Output is correct |
19 |
Correct |
6 ms |
12116 KB |
Output is correct |
20 |
Correct |
6 ms |
11988 KB |
Output is correct |
21 |
Correct |
220 ms |
37896 KB |
Output is correct |
22 |
Correct |
34 ms |
14008 KB |
Output is correct |
23 |
Correct |
22 ms |
13580 KB |
Output is correct |
24 |
Correct |
73 ms |
18952 KB |
Output is correct |
25 |
Correct |
220 ms |
37856 KB |
Output is correct |
26 |
Correct |
62 ms |
16996 KB |
Output is correct |
27 |
Correct |
29 ms |
13856 KB |
Output is correct |
28 |
Correct |
221 ms |
37880 KB |
Output is correct |
29 |
Correct |
219 ms |
37956 KB |
Output is correct |
30 |
Correct |
61 ms |
16552 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
11988 KB |
Output is correct |
2 |
Correct |
6 ms |
11988 KB |
Output is correct |
3 |
Correct |
6 ms |
11988 KB |
Output is correct |
4 |
Correct |
6 ms |
11956 KB |
Output is correct |
5 |
Correct |
6 ms |
12056 KB |
Output is correct |
6 |
Correct |
6 ms |
12064 KB |
Output is correct |
7 |
Correct |
5 ms |
11988 KB |
Output is correct |
8 |
Correct |
6 ms |
11988 KB |
Output is correct |
9 |
Correct |
6 ms |
12028 KB |
Output is correct |
10 |
Correct |
6 ms |
11988 KB |
Output is correct |
11 |
Correct |
6 ms |
11988 KB |
Output is correct |
12 |
Correct |
212 ms |
31132 KB |
Output is correct |
13 |
Correct |
6 ms |
11988 KB |
Output is correct |
14 |
Correct |
7 ms |
11988 KB |
Output is correct |
15 |
Correct |
5 ms |
11988 KB |
Output is correct |
16 |
Correct |
6 ms |
12104 KB |
Output is correct |
17 |
Correct |
245 ms |
33692 KB |
Output is correct |
18 |
Correct |
6 ms |
11988 KB |
Output is correct |
19 |
Correct |
6 ms |
11988 KB |
Output is correct |
20 |
Correct |
5 ms |
11988 KB |
Output is correct |
21 |
Correct |
58 ms |
17872 KB |
Output is correct |
22 |
Correct |
19 ms |
13388 KB |
Output is correct |
23 |
Correct |
19 ms |
13396 KB |
Output is correct |
24 |
Correct |
62 ms |
20092 KB |
Output is correct |
25 |
Correct |
30 ms |
16088 KB |
Output is correct |
26 |
Correct |
58 ms |
20512 KB |
Output is correct |
27 |
Correct |
7 ms |
12192 KB |
Output is correct |
28 |
Correct |
65 ms |
19904 KB |
Output is correct |
29 |
Correct |
35 ms |
16832 KB |
Output is correct |
30 |
Correct |
64 ms |
19812 KB |
Output is correct |
31 |
Correct |
6 ms |
11988 KB |
Output is correct |
32 |
Correct |
5 ms |
11988 KB |
Output is correct |
33 |
Correct |
6 ms |
11988 KB |
Output is correct |
34 |
Correct |
7 ms |
11988 KB |
Output is correct |
35 |
Correct |
6 ms |
11980 KB |
Output is correct |
36 |
Correct |
6 ms |
12056 KB |
Output is correct |
37 |
Correct |
6 ms |
12060 KB |
Output is correct |
38 |
Correct |
6 ms |
12060 KB |
Output is correct |
39 |
Correct |
6 ms |
12116 KB |
Output is correct |
40 |
Correct |
6 ms |
11988 KB |
Output is correct |
41 |
Correct |
220 ms |
37896 KB |
Output is correct |
42 |
Correct |
34 ms |
14008 KB |
Output is correct |
43 |
Correct |
22 ms |
13580 KB |
Output is correct |
44 |
Correct |
73 ms |
18952 KB |
Output is correct |
45 |
Correct |
220 ms |
37856 KB |
Output is correct |
46 |
Correct |
62 ms |
16996 KB |
Output is correct |
47 |
Correct |
29 ms |
13856 KB |
Output is correct |
48 |
Correct |
221 ms |
37880 KB |
Output is correct |
49 |
Correct |
219 ms |
37956 KB |
Output is correct |
50 |
Correct |
61 ms |
16552 KB |
Output is correct |
51 |
Correct |
32 ms |
14152 KB |
Output is correct |
52 |
Correct |
245 ms |
39152 KB |
Output is correct |
53 |
Correct |
249 ms |
39076 KB |
Output is correct |
54 |
Correct |
55 ms |
15660 KB |
Output is correct |
55 |
Correct |
138 ms |
20060 KB |
Output is correct |
56 |
Correct |
72 ms |
18672 KB |
Output is correct |
57 |
Correct |
98 ms |
18028 KB |
Output is correct |
58 |
Correct |
245 ms |
39252 KB |
Output is correct |
59 |
Correct |
60 ms |
15824 KB |
Output is correct |
60 |
Correct |
87 ms |
17140 KB |
Output is correct |