#include <bits/stdc++.h>
using namespace std;
const int N = 5e5 + 1;
int m,n;
vector<pair<int,int> > a;
int tmp[N];
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> m >> n;
for(int i = 1;i <= n;i++)
{
int am,sum = 0;
cin >> am;
for(int j = 0;j < am;j++){ int x; cin >> x; sum+=x; tmp[j] = x; }
int ll = 0,rr = sum;
for(int j = 0;j < am;j++)
{
rr-=tmp[j];
int l = ll+tmp[j],r = m-rr-tmp[j]+1;
if(r<=l) a.push_back({r,l});
ll+=tmp[j];
}
}
sort(a.begin(),a.end());
int now = 0,ans = 0;
for(auto [x,y] : a)
{
if(now<x) now = y,ans+=y-x+1;
else if(y>now) ans+=y-now,now = y;
}
cout << ans;
}
Compilation message
lasers.cpp: In function 'int main()':
lasers.cpp:31:14: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
for(auto [x,y] : a)
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
4 ms |
384 KB |
Output is correct |
7 |
Correct |
6 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
4 ms |
384 KB |
Output is correct |
7 |
Correct |
6 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
129 ms |
10080 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
145 ms |
8016 KB |
Output is correct |
18 |
Correct |
4 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
39 ms |
3184 KB |
Output is correct |
2 |
Correct |
11 ms |
1152 KB |
Output is correct |
3 |
Correct |
12 ms |
1024 KB |
Output is correct |
4 |
Correct |
47 ms |
3824 KB |
Output is correct |
5 |
Correct |
21 ms |
2300 KB |
Output is correct |
6 |
Correct |
35 ms |
3192 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
38 ms |
2932 KB |
Output is correct |
9 |
Correct |
26 ms |
3320 KB |
Output is correct |
10 |
Correct |
44 ms |
3952 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
39 ms |
3184 KB |
Output is correct |
2 |
Correct |
11 ms |
1152 KB |
Output is correct |
3 |
Correct |
12 ms |
1024 KB |
Output is correct |
4 |
Correct |
47 ms |
3824 KB |
Output is correct |
5 |
Correct |
21 ms |
2300 KB |
Output is correct |
6 |
Correct |
35 ms |
3192 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
38 ms |
2932 KB |
Output is correct |
9 |
Correct |
26 ms |
3320 KB |
Output is correct |
10 |
Correct |
44 ms |
3952 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
384 KB |
Output is correct |
15 |
Correct |
4 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
5 ms |
384 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
5 ms |
384 KB |
Output is correct |
21 |
Correct |
132 ms |
6760 KB |
Output is correct |
22 |
Correct |
24 ms |
1660 KB |
Output is correct |
23 |
Correct |
15 ms |
1408 KB |
Output is correct |
24 |
Correct |
52 ms |
3952 KB |
Output is correct |
25 |
Correct |
130 ms |
6760 KB |
Output is correct |
26 |
Correct |
41 ms |
3704 KB |
Output is correct |
27 |
Correct |
20 ms |
1536 KB |
Output is correct |
28 |
Correct |
135 ms |
6892 KB |
Output is correct |
29 |
Correct |
136 ms |
6760 KB |
Output is correct |
30 |
Correct |
39 ms |
2552 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
4 ms |
384 KB |
Output is correct |
7 |
Correct |
6 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
5 ms |
384 KB |
Output is correct |
12 |
Correct |
129 ms |
10080 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
5 ms |
384 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
5 ms |
384 KB |
Output is correct |
17 |
Correct |
145 ms |
8016 KB |
Output is correct |
18 |
Correct |
4 ms |
384 KB |
Output is correct |
19 |
Correct |
5 ms |
384 KB |
Output is correct |
20 |
Correct |
4 ms |
384 KB |
Output is correct |
21 |
Correct |
39 ms |
3184 KB |
Output is correct |
22 |
Correct |
11 ms |
1152 KB |
Output is correct |
23 |
Correct |
12 ms |
1024 KB |
Output is correct |
24 |
Correct |
47 ms |
3824 KB |
Output is correct |
25 |
Correct |
21 ms |
2300 KB |
Output is correct |
26 |
Correct |
35 ms |
3192 KB |
Output is correct |
27 |
Correct |
5 ms |
384 KB |
Output is correct |
28 |
Correct |
38 ms |
2932 KB |
Output is correct |
29 |
Correct |
26 ms |
3320 KB |
Output is correct |
30 |
Correct |
44 ms |
3952 KB |
Output is correct |
31 |
Correct |
5 ms |
384 KB |
Output is correct |
32 |
Correct |
5 ms |
384 KB |
Output is correct |
33 |
Correct |
5 ms |
384 KB |
Output is correct |
34 |
Correct |
5 ms |
384 KB |
Output is correct |
35 |
Correct |
4 ms |
384 KB |
Output is correct |
36 |
Correct |
5 ms |
384 KB |
Output is correct |
37 |
Correct |
5 ms |
384 KB |
Output is correct |
38 |
Correct |
5 ms |
384 KB |
Output is correct |
39 |
Correct |
5 ms |
384 KB |
Output is correct |
40 |
Correct |
5 ms |
384 KB |
Output is correct |
41 |
Correct |
132 ms |
6760 KB |
Output is correct |
42 |
Correct |
24 ms |
1660 KB |
Output is correct |
43 |
Correct |
15 ms |
1408 KB |
Output is correct |
44 |
Correct |
52 ms |
3952 KB |
Output is correct |
45 |
Correct |
130 ms |
6760 KB |
Output is correct |
46 |
Correct |
41 ms |
3704 KB |
Output is correct |
47 |
Correct |
20 ms |
1536 KB |
Output is correct |
48 |
Correct |
135 ms |
6892 KB |
Output is correct |
49 |
Correct |
136 ms |
6760 KB |
Output is correct |
50 |
Correct |
39 ms |
2552 KB |
Output is correct |
51 |
Correct |
22 ms |
1788 KB |
Output is correct |
52 |
Correct |
140 ms |
8036 KB |
Output is correct |
53 |
Correct |
145 ms |
7912 KB |
Output is correct |
54 |
Correct |
37 ms |
2988 KB |
Output is correct |
55 |
Correct |
79 ms |
5228 KB |
Output is correct |
56 |
Correct |
46 ms |
4208 KB |
Output is correct |
57 |
Correct |
57 ms |
4588 KB |
Output is correct |
58 |
Correct |
146 ms |
8044 KB |
Output is correct |
59 |
Correct |
41 ms |
2680 KB |
Output is correct |
60 |
Correct |
54 ms |
3696 KB |
Output is correct |