oj.uz

Submission #1107047

# Submission time Handle Problem Language Result Execution time Memory
1107047 2024-10-31T13:07:07 Z 8pete8 Constellation 3 (JOI20_constellation3) C++17
100 / 100
 244 ms 89276 KB 
#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<cassert>
#include<unordered_map>
#include <queue>
#include <cstdint>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric>
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-lopps")
#define int long long
using namespace std;
const int mod=1e9+7,mxn=2e5+5,inf=1e18,minf=-1e18,lg=30;
//#undef int
int n,k,m;
void setIO(string name){		
	ios_base::sync_with_stdio(0); cin.tie(0);		
	freopen((name+".in").c_str(),"r",stdin);		
	freopen((name+".out").c_str(),"w",stdout);	
}
int h[mxn+10];
vector<pair<pii,int>>star;
vector<pii>add[mxn+10];
map<int,int>dp[mxn+10],dp2[mxn+10];
int last[mxn+10],sub[mxn+10];
int l[mxn+10],r[mxn+10];
void shift(int cur,int x){
    auto it=dp2[cur].begin();
    while(it!=dp2[cur].end()&&(*it).f<=x){
        if((*it).s-last[cur]>0){
            dp[cur][(*it).f]+=(*it).s-last[cur];
            sub[cur]+=(*it).s-last[cur];
            last[cur]=(*it).s;
        }
        it=dp2[cur].erase(it);
    }
}
pii a={-1,-1},b={-1,-1};
void merge(int p,int c){
    shift(c,h[p]);
    if(dp[p].size()<dp[c].size())swap(dp[p],dp[c]);
    if(dp2[p].size()<dp2[c].size())swap(dp2[p],dp2[c]),swap(sub[p],sub[c]),swap(last[p],last[c]);
    for(auto i:dp[c])dp[p][i.f]+=i.s;
    for(auto i:dp2[c])dp2[p][i.f]=max(dp2[p][i.f],i.s-sub[c]+sub[p]);
}
void dfs(int cur){
    for(auto i:add[cur])dp2[cur][i.f]=i.s;
    if(l[cur])dfs(l[cur]),merge(cur,l[cur]);
    if(r[cur])dfs(r[cur]),merge(cur,r[cur]);
}
int32_t main(){
    fastio
    int ans=0;
    cin>>n;
    for(int i=1;i<=n;i++)cin>>h[i];
    cin>>m;
    for(int i=0;i<m;i++){
        int x,y,c;cin>>x>>y>>c;
        ans+=c;
        add[x].pb({y,c});
    }
    stack<int>st;
    int root=0;
    for(int i=1;i<=n;i++){
        if(h[i]>=h[root])root=i;
        while(!st.empty()&&h[st.top()]<=h[i])l[i]=st.top(),st.pop();
        if(!st.empty())r[st.top()]=i;
        st.push(i);
    }
    dfs(root);
    for(auto i:dp[root])ans-=i.s;
    int mx=0;
    for(auto i:dp2[root])mx=max(mx,i.s-sub[root]);
    cout<<ans-mx;
}
/*
7 9 0 8HERE
2 9
_____
3 18
4 22
5 3


5 0 0 0HERE
_____
4 8
5 3
8 17

6 8 5 7HERE
2 9
3 18
4 12
_____
5 3
6 15
8 17
*/

Compilation message

constellation3.cpp:32:40: warning: bad option '-funroll-lopps' to pragma 'optimize' [-Wpragmas]
   32 | #pragma GCC optimize ("03,unroll-lopps")
      |                                        ^
constellation3.cpp:38:23: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   38 | void setIO(string name){
      |                       ^
constellation3.cpp:49:25: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   49 | void shift(int cur,int x){
      |                         ^
constellation3.cpp:61:23: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   61 | void merge(int p,int c){
      |                       ^
constellation3.cpp:68:17: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   68 | void dfs(int cur){
      |                 ^
constellation3.cpp:73:14: warning: bad option '-funroll-lopps' to attribute 'optimize' [-Wattributes]
   73 | int32_t main(){
      |              ^
constellation3.cpp: In function 'void setIO(std::string)':
constellation3.cpp:40:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
constellation3.cpp:41:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 31056 KB Output is correct
2 Correct 5 ms 29144 KB Output is correct
3 Correct 6 ms 29008 KB Output is correct
4 Correct 5 ms 31056 KB Output is correct
5 Correct 6 ms 29460 KB Output is correct
6 Correct 5 ms 29008 KB Output is correct
7 Correct 5 ms 31244 KB Output is correct
8 Correct 5 ms 29264 KB Output is correct
9 Correct 5 ms 29008 KB Output is correct
10 Correct 6 ms 31192 KB Output is correct
11 Correct 5 ms 31224 KB Output is correct
12 Correct 5 ms 31248 KB Output is correct
13 Correct 4 ms 29264 KB Output is correct
14 Correct 5 ms 31056 KB Output is correct
15 Correct 4 ms 29140 KB Output is correct
16 Correct 5 ms 31312 KB Output is correct
17 Correct 5 ms 29148 KB Output is correct
18 Correct 4 ms 29264 KB Output is correct
19 Correct 4 ms 29008 KB Output is correct
20 Correct 5 ms 29008 KB Output is correct
21 Correct 4 ms 29264 KB Output is correct
22 Correct 4 ms 29008 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 31056 KB Output is correct
2 Correct 5 ms 29144 KB Output is correct
3 Correct 6 ms 29008 KB Output is correct
4 Correct 5 ms 31056 KB Output is correct
5 Correct 6 ms 29460 KB Output is correct
6 Correct 5 ms 29008 KB Output is correct
7 Correct 5 ms 31244 KB Output is correct
8 Correct 5 ms 29264 KB Output is correct
9 Correct 5 ms 29008 KB Output is correct
10 Correct 6 ms 31192 KB Output is correct
11 Correct 5 ms 31224 KB Output is correct
12 Correct 5 ms 31248 KB Output is correct
13 Correct 4 ms 29264 KB Output is correct
14 Correct 5 ms 31056 KB Output is correct
15 Correct 4 ms 29140 KB Output is correct
16 Correct 5 ms 31312 KB Output is correct
17 Correct 5 ms 29148 KB Output is correct
18 Correct 4 ms 29264 KB Output is correct
19 Correct 4 ms 29008 KB Output is correct
20 Correct 5 ms 29008 KB Output is correct
21 Correct 4 ms 29264 KB Output is correct
22 Correct 4 ms 29008 KB Output is correct
23 Correct 7 ms 31568 KB Output is correct
24 Correct 6 ms 29520 KB Output is correct
25 Correct 6 ms 31612 KB Output is correct
26 Correct 6 ms 29688 KB Output is correct
27 Correct 6 ms 29724 KB Output is correct
28 Correct 6 ms 29520 KB Output is correct
29 Correct 6 ms 29388 KB Output is correct
30 Correct 7 ms 31568 KB Output is correct
31 Correct 6 ms 29604 KB Output is correct
32 Correct 6 ms 29688 KB Output is correct
33 Correct 6 ms 29624 KB Output is correct
34 Correct 6 ms 31820 KB Output is correct
35 Correct 6 ms 31568 KB Output is correct
36 Correct 6 ms 29688 KB Output is correct
37 Correct 8 ms 29520 KB Output is correct
38 Correct 5 ms 31568 KB Output is correct
39 Correct 5 ms 29520 KB Output is correct
40 Correct 6 ms 29688 KB Output is correct
41 Correct 5 ms 29264 KB Output is correct
42 Correct 5 ms 29264 KB Output is correct
43 Correct 6 ms 29520 KB Output is correct
44 Correct 5 ms 31312 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 31056 KB Output is correct
2 Correct 5 ms 29144 KB Output is correct
3 Correct 6 ms 29008 KB Output is correct
4 Correct 5 ms 31056 KB Output is correct
5 Correct 6 ms 29460 KB Output is correct
6 Correct 5 ms 29008 KB Output is correct
7 Correct 5 ms 31244 KB Output is correct
8 Correct 5 ms 29264 KB Output is correct
9 Correct 5 ms 29008 KB Output is correct
10 Correct 6 ms 31192 KB Output is correct
11 Correct 5 ms 31224 KB Output is correct
12 Correct 5 ms 31248 KB Output is correct
13 Correct 4 ms 29264 KB Output is correct
14 Correct 5 ms 31056 KB Output is correct
15 Correct 4 ms 29140 KB Output is correct
16 Correct 5 ms 31312 KB Output is correct
17 Correct 5 ms 29148 KB Output is correct
18 Correct 4 ms 29264 KB Output is correct
19 Correct 4 ms 29008 KB Output is correct
20 Correct 5 ms 29008 KB Output is correct
21 Correct 4 ms 29264 KB Output is correct
22 Correct 4 ms 29008 KB Output is correct
23 Correct 7 ms 31568 KB Output is correct
24 Correct 6 ms 29520 KB Output is correct
25 Correct 6 ms 31612 KB Output is correct
26 Correct 6 ms 29688 KB Output is correct
27 Correct 6 ms 29724 KB Output is correct
28 Correct 6 ms 29520 KB Output is correct
29 Correct 6 ms 29388 KB Output is correct
30 Correct 7 ms 31568 KB Output is correct
31 Correct 6 ms 29604 KB Output is correct
32 Correct 6 ms 29688 KB Output is correct
33 Correct 6 ms 29624 KB Output is correct
34 Correct 6 ms 31820 KB Output is correct
35 Correct 6 ms 31568 KB Output is correct
36 Correct 6 ms 29688 KB Output is correct
37 Correct 8 ms 29520 KB Output is correct
38 Correct 5 ms 31568 KB Output is correct
39 Correct 5 ms 29520 KB Output is correct
40 Correct 6 ms 29688 KB Output is correct
41 Correct 5 ms 29264 KB Output is correct
42 Correct 5 ms 29264 KB Output is correct
43 Correct 6 ms 29520 KB Output is correct
44 Correct 5 ms 31312 KB Output is correct
45 Correct 218 ms 88524 KB Output is correct
46 Correct 214 ms 87624 KB Output is correct
47 Correct 218 ms 88904 KB Output is correct
48 Correct 215 ms 86832 KB Output is correct
49 Correct 206 ms 87560 KB Output is correct
50 Correct 215 ms 87112 KB Output is correct
51 Correct 239 ms 87740 KB Output is correct
52 Correct 210 ms 89276 KB Output is correct
53 Correct 220 ms 87112 KB Output is correct
54 Correct 244 ms 74740 KB Output is correct
55 Correct 204 ms 70984 KB Output is correct
56 Correct 200 ms 68680 KB Output is correct
57 Correct 222 ms 67912 KB Output is correct
58 Correct 189 ms 74804 KB Output is correct
59 Correct 186 ms 75032 KB Output is correct
60 Correct 134 ms 78152 KB Output is correct
61 Correct 133 ms 62536 KB Output is correct
62 Correct 228 ms 78664 KB Output is correct
63 Correct 128 ms 59892 KB Output is correct
64 Correct 148 ms 61952 KB Output is correct
65 Correct 206 ms 78408 KB Output is correct
66 Correct 145 ms 61000 KB Output is correct