#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#define ll long long
#define pb push_back
#define sz(x) (int)(x).size()
#define mp make_pair
#define f first
#define s second
#define all(x) x.begin(), x.end()
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>; ///find_by_order(),order_of_key()
template<class T1, class T2> ostream& operator<<(ostream& os, const pair<T1,T2>& a) { os << '{' << a.f << ", " << a.s << '}'; return os; }
template<class T> ostream& operator<<(ostream& os, const vector<T>& a) {
os << '{';
for(int i=0;i<sz(a);i++)
{
if(i>0&&i<sz(a)-1)
os << ", ";
os << a[i];
}
os << '}';
return os;
}
const int N=2e5+5;
vector<vector<pair<int,int> > > interval(N);
vector<ll> sum(N),temp(N),change(N);
int n;
bool test(ll max_flips,ll height)
{
fill(all(temp),0);
ll cnt=0;
priority_queue<pair<int,pair<int,int> > > q;
for(int i=1;i<=n;i++)
{
temp[i]+=temp[i-1];
for(auto p:interval[i])
q.push({p.first,{p.second,n-i}});
ll now=sum[i]+temp[i];
while(!q.empty()&&now>height)
{
int y=q.top().first,c=q.top().second.first,x=n-q.top().second.second;
ll v=min((ll)c,(ll)(now-height+1)/2);
q.pop();
if(y<=i)
continue;
cnt+=v;
temp[i]-=2*v;
temp[y]+=2*v;
now-=2*v;
if(v<c)
q.push({y,{c-v,x}});
}
if(cnt>max_flips||now>height)
return false;
}
return true;
}
int main()
{
int m;
scanf("%i %i",&n,&m);
for(int i=0;i<m;i++)
{
int a,b,c;
scanf("%i %i %i",&a,&b,&c);
if(a>b)
swap(a,b);
interval[a].pb({b,c});
sum[a]+=c;
sum[b]-=c;
}
ll maxV=0;
for(int i=1;i<=n;i++)
sum[i]+=sum[i-1],maxV=max(maxV,sum[i]);
ll l=0,r=maxV;
ll ans=-1;
while(l<r)
{
ll mid=(l+r)>>1;
if(test(maxV-mid,2*mid-maxV)||test(maxV-mid+1,2*mid-maxV-1))
r=mid;
else
l=mid+1;
}
printf("%lld\n",l);
return 0;
}
Compilation message
arranging_tickets.cpp: In function 'int main()':
arranging_tickets.cpp:69:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%i %i",&n,&m);
~~~~~^~~~~~~~~~~~~~~
arranging_tickets.cpp:73:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%i %i %i",&a,&b,&c);
~~~~~^~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9792 KB |
Output is correct |
4 |
Correct |
10 ms |
9936 KB |
Output is correct |
5 |
Correct |
11 ms |
9936 KB |
Output is correct |
6 |
Correct |
6 ms |
9952 KB |
Output is correct |
7 |
Correct |
12 ms |
9952 KB |
Output is correct |
8 |
Correct |
12 ms |
9952 KB |
Output is correct |
9 |
Correct |
11 ms |
9952 KB |
Output is correct |
10 |
Correct |
12 ms |
9952 KB |
Output is correct |
11 |
Correct |
12 ms |
10012 KB |
Output is correct |
12 |
Correct |
12 ms |
10012 KB |
Output is correct |
13 |
Correct |
12 ms |
10012 KB |
Output is correct |
14 |
Correct |
12 ms |
10012 KB |
Output is correct |
15 |
Correct |
13 ms |
10012 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9792 KB |
Output is correct |
4 |
Correct |
10 ms |
9936 KB |
Output is correct |
5 |
Correct |
11 ms |
9936 KB |
Output is correct |
6 |
Correct |
6 ms |
9952 KB |
Output is correct |
7 |
Correct |
12 ms |
9952 KB |
Output is correct |
8 |
Correct |
12 ms |
9952 KB |
Output is correct |
9 |
Correct |
11 ms |
9952 KB |
Output is correct |
10 |
Correct |
12 ms |
9952 KB |
Output is correct |
11 |
Correct |
12 ms |
10012 KB |
Output is correct |
12 |
Correct |
12 ms |
10012 KB |
Output is correct |
13 |
Correct |
12 ms |
10012 KB |
Output is correct |
14 |
Correct |
12 ms |
10012 KB |
Output is correct |
15 |
Correct |
13 ms |
10012 KB |
Output is correct |
16 |
Correct |
12 ms |
10012 KB |
Output is correct |
17 |
Correct |
12 ms |
10012 KB |
Output is correct |
18 |
Correct |
13 ms |
10012 KB |
Output is correct |
19 |
Correct |
12 ms |
10012 KB |
Output is correct |
20 |
Correct |
13 ms |
10092 KB |
Output is correct |
21 |
Correct |
12 ms |
10092 KB |
Output is correct |
22 |
Correct |
13 ms |
10092 KB |
Output is correct |
23 |
Correct |
13 ms |
10092 KB |
Output is correct |
24 |
Correct |
13 ms |
10092 KB |
Output is correct |
25 |
Correct |
12 ms |
10092 KB |
Output is correct |
26 |
Correct |
12 ms |
10092 KB |
Output is correct |
27 |
Correct |
11 ms |
10092 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9792 KB |
Output is correct |
4 |
Correct |
10 ms |
9936 KB |
Output is correct |
5 |
Correct |
11 ms |
9936 KB |
Output is correct |
6 |
Correct |
6 ms |
9952 KB |
Output is correct |
7 |
Correct |
12 ms |
9952 KB |
Output is correct |
8 |
Correct |
12 ms |
9952 KB |
Output is correct |
9 |
Correct |
11 ms |
9952 KB |
Output is correct |
10 |
Correct |
12 ms |
9952 KB |
Output is correct |
11 |
Correct |
12 ms |
10012 KB |
Output is correct |
12 |
Correct |
12 ms |
10012 KB |
Output is correct |
13 |
Correct |
12 ms |
10012 KB |
Output is correct |
14 |
Correct |
12 ms |
10012 KB |
Output is correct |
15 |
Correct |
13 ms |
10012 KB |
Output is correct |
16 |
Correct |
12 ms |
10012 KB |
Output is correct |
17 |
Correct |
12 ms |
10012 KB |
Output is correct |
18 |
Correct |
13 ms |
10012 KB |
Output is correct |
19 |
Correct |
12 ms |
10012 KB |
Output is correct |
20 |
Correct |
13 ms |
10092 KB |
Output is correct |
21 |
Correct |
12 ms |
10092 KB |
Output is correct |
22 |
Correct |
13 ms |
10092 KB |
Output is correct |
23 |
Correct |
13 ms |
10092 KB |
Output is correct |
24 |
Correct |
13 ms |
10092 KB |
Output is correct |
25 |
Correct |
12 ms |
10092 KB |
Output is correct |
26 |
Correct |
12 ms |
10092 KB |
Output is correct |
27 |
Correct |
11 ms |
10092 KB |
Output is correct |
28 |
Correct |
15 ms |
10108 KB |
Output is correct |
29 |
Correct |
15 ms |
10108 KB |
Output is correct |
30 |
Correct |
15 ms |
10108 KB |
Output is correct |
31 |
Correct |
16 ms |
10108 KB |
Output is correct |
32 |
Correct |
16 ms |
10108 KB |
Output is correct |
33 |
Correct |
15 ms |
10108 KB |
Output is correct |
34 |
Correct |
13 ms |
10108 KB |
Output is correct |
35 |
Correct |
16 ms |
10108 KB |
Output is correct |
36 |
Correct |
15 ms |
10108 KB |
Output is correct |
37 |
Correct |
15 ms |
10108 KB |
Output is correct |
38 |
Correct |
13 ms |
10112 KB |
Output is correct |
39 |
Correct |
13 ms |
10112 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9792 KB |
Output is correct |
4 |
Correct |
10 ms |
9936 KB |
Output is correct |
5 |
Correct |
11 ms |
9936 KB |
Output is correct |
6 |
Correct |
6 ms |
9952 KB |
Output is correct |
7 |
Correct |
12 ms |
9952 KB |
Output is correct |
8 |
Correct |
12 ms |
9952 KB |
Output is correct |
9 |
Correct |
11 ms |
9952 KB |
Output is correct |
10 |
Correct |
12 ms |
9952 KB |
Output is correct |
11 |
Correct |
12 ms |
10012 KB |
Output is correct |
12 |
Correct |
12 ms |
10012 KB |
Output is correct |
13 |
Correct |
12 ms |
10012 KB |
Output is correct |
14 |
Correct |
12 ms |
10012 KB |
Output is correct |
15 |
Correct |
13 ms |
10012 KB |
Output is correct |
16 |
Correct |
12 ms |
10012 KB |
Output is correct |
17 |
Correct |
12 ms |
10012 KB |
Output is correct |
18 |
Correct |
13 ms |
10012 KB |
Output is correct |
19 |
Correct |
12 ms |
10012 KB |
Output is correct |
20 |
Correct |
13 ms |
10092 KB |
Output is correct |
21 |
Correct |
12 ms |
10092 KB |
Output is correct |
22 |
Correct |
13 ms |
10092 KB |
Output is correct |
23 |
Correct |
13 ms |
10092 KB |
Output is correct |
24 |
Correct |
13 ms |
10092 KB |
Output is correct |
25 |
Correct |
12 ms |
10092 KB |
Output is correct |
26 |
Correct |
12 ms |
10092 KB |
Output is correct |
27 |
Correct |
11 ms |
10092 KB |
Output is correct |
28 |
Correct |
15 ms |
10108 KB |
Output is correct |
29 |
Correct |
15 ms |
10108 KB |
Output is correct |
30 |
Correct |
15 ms |
10108 KB |
Output is correct |
31 |
Correct |
16 ms |
10108 KB |
Output is correct |
32 |
Correct |
16 ms |
10108 KB |
Output is correct |
33 |
Correct |
15 ms |
10108 KB |
Output is correct |
34 |
Correct |
13 ms |
10108 KB |
Output is correct |
35 |
Correct |
16 ms |
10108 KB |
Output is correct |
36 |
Correct |
15 ms |
10108 KB |
Output is correct |
37 |
Correct |
15 ms |
10108 KB |
Output is correct |
38 |
Correct |
13 ms |
10112 KB |
Output is correct |
39 |
Correct |
13 ms |
10112 KB |
Output is correct |
40 |
Correct |
462 ms |
14584 KB |
Output is correct |
41 |
Correct |
528 ms |
14636 KB |
Output is correct |
42 |
Correct |
359 ms |
14636 KB |
Output is correct |
43 |
Correct |
433 ms |
14636 KB |
Output is correct |
44 |
Correct |
521 ms |
14636 KB |
Output is correct |
45 |
Correct |
369 ms |
14636 KB |
Output is correct |
46 |
Correct |
302 ms |
14636 KB |
Output is correct |
47 |
Correct |
92 ms |
14636 KB |
Output is correct |
48 |
Correct |
95 ms |
14636 KB |
Output is correct |
49 |
Correct |
85 ms |
14636 KB |
Output is correct |
50 |
Correct |
79 ms |
14636 KB |
Output is correct |
51 |
Correct |
87 ms |
14636 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9792 KB |
Output is correct |
4 |
Correct |
10 ms |
9936 KB |
Output is correct |
5 |
Correct |
11 ms |
9936 KB |
Output is correct |
6 |
Correct |
6 ms |
9952 KB |
Output is correct |
7 |
Correct |
12 ms |
9952 KB |
Output is correct |
8 |
Correct |
12 ms |
9952 KB |
Output is correct |
9 |
Correct |
11 ms |
9952 KB |
Output is correct |
10 |
Correct |
12 ms |
9952 KB |
Output is correct |
11 |
Correct |
12 ms |
10012 KB |
Output is correct |
12 |
Correct |
12 ms |
10012 KB |
Output is correct |
13 |
Correct |
12 ms |
10012 KB |
Output is correct |
14 |
Correct |
12 ms |
10012 KB |
Output is correct |
15 |
Correct |
13 ms |
10012 KB |
Output is correct |
16 |
Correct |
12 ms |
10012 KB |
Output is correct |
17 |
Correct |
12 ms |
10012 KB |
Output is correct |
18 |
Correct |
13 ms |
10012 KB |
Output is correct |
19 |
Correct |
12 ms |
10012 KB |
Output is correct |
20 |
Correct |
13 ms |
10092 KB |
Output is correct |
21 |
Correct |
12 ms |
10092 KB |
Output is correct |
22 |
Correct |
13 ms |
10092 KB |
Output is correct |
23 |
Correct |
13 ms |
10092 KB |
Output is correct |
24 |
Correct |
13 ms |
10092 KB |
Output is correct |
25 |
Correct |
12 ms |
10092 KB |
Output is correct |
26 |
Correct |
12 ms |
10092 KB |
Output is correct |
27 |
Correct |
11 ms |
10092 KB |
Output is correct |
28 |
Correct |
15 ms |
10108 KB |
Output is correct |
29 |
Correct |
15 ms |
10108 KB |
Output is correct |
30 |
Correct |
15 ms |
10108 KB |
Output is correct |
31 |
Correct |
16 ms |
10108 KB |
Output is correct |
32 |
Correct |
16 ms |
10108 KB |
Output is correct |
33 |
Correct |
15 ms |
10108 KB |
Output is correct |
34 |
Correct |
13 ms |
10108 KB |
Output is correct |
35 |
Correct |
16 ms |
10108 KB |
Output is correct |
36 |
Correct |
15 ms |
10108 KB |
Output is correct |
37 |
Correct |
15 ms |
10108 KB |
Output is correct |
38 |
Correct |
13 ms |
10112 KB |
Output is correct |
39 |
Correct |
13 ms |
10112 KB |
Output is correct |
40 |
Correct |
462 ms |
14584 KB |
Output is correct |
41 |
Correct |
528 ms |
14636 KB |
Output is correct |
42 |
Correct |
359 ms |
14636 KB |
Output is correct |
43 |
Correct |
433 ms |
14636 KB |
Output is correct |
44 |
Correct |
521 ms |
14636 KB |
Output is correct |
45 |
Correct |
369 ms |
14636 KB |
Output is correct |
46 |
Correct |
302 ms |
14636 KB |
Output is correct |
47 |
Correct |
92 ms |
14636 KB |
Output is correct |
48 |
Correct |
95 ms |
14636 KB |
Output is correct |
49 |
Correct |
85 ms |
14636 KB |
Output is correct |
50 |
Correct |
79 ms |
14636 KB |
Output is correct |
51 |
Correct |
87 ms |
14636 KB |
Output is correct |
52 |
Correct |
2025 ms |
14668 KB |
Output is correct |
53 |
Correct |
1438 ms |
14668 KB |
Output is correct |
54 |
Correct |
1518 ms |
14668 KB |
Output is correct |
55 |
Correct |
1723 ms |
14668 KB |
Output is correct |
56 |
Correct |
1266 ms |
14668 KB |
Output is correct |
57 |
Correct |
1696 ms |
14668 KB |
Output is correct |
58 |
Correct |
1416 ms |
14668 KB |
Output is correct |
59 |
Correct |
822 ms |
14668 KB |
Output is correct |