oj.uz

Submission #979381

# Submission time Handle Problem Language Result Execution time Memory
979381 2024-05-10T18:15:35 Z yeediot Constellation 3 (JOI20_constellation3) C++17
100 / 100
 141 ms 23428 KB 
#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
struct line{
    int a,b;
    int operator()(const int x)const{
        return a*x+b;
    }
};
bool check(line l1,line l2,line l3){
    return (l3.b-l2.b)*(l1.a-l2.a)<=(l2.b-l1.b)*(l2.a-l3.a);
}
const int mxn=2e5+5;
int n, m, h[mxn];
long long ans, bit[mxn];
void modify(int p,int v){
    for(;p<mxn;p+=p&-p){
        bit[p]+=v;
    }
}
long long query(int p){
    long long res=0;
    for(;p;p-=p&-p){
        res+=bit[p];
    }
    return res;
}
vector<int>H[mxn];
vector<pair<int,int>>star[mxn];
struct DSU{
    int to[mxn];
    void init(){
        for(int i=0;i<mxn;i++){
            to[i]=i;
        }
    }
    int find(int x){
        return x==to[x]?x:to[x]=find(to[x]);
    }
    void merge(int x,int y){
        x=find(x);
        y=find(y);
        to[x]=y;
    }
}l,r;
signed main(){
    setio();
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>h[i];
        H[h[i]].pb(i);
    }
    cin>>m;
    for(int i=1;i<=m;i++){
        int x,y,c;
        cin>>x>>y>>c;
        star[y].pb({x,c});
    }
    l.init(),r.init();
    for(int i=1;i<=n;i++){
        for(auto [id,c]:star[i]){
            int L=r.find(id),R=l.find(id);
            long long val=query(id);
            if(c>val){
                ans+=val;
                modify(L,c-val);
                modify(R+1,val-c);
            }
            else{
                ans+=c;
            }
        }
        for(auto id:H[i]){
            if(id>1 and h[id]>=h[id-1]){
                l.merge(id-1,id);
                r.merge(id,id-1);
            }
            if(id<n and h[id]>=h[id+1]){
                r.merge(id+1,id);
                l.merge(id,id+1);
            }
        }
    }
    cout<<ans<<'\n';
}
 /*
 input:
 
 */

Compilation message

constellation3.cpp: In function 'void setIO(std::string)':
constellation3.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
constellation3.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12888 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 3 ms 12892 KB Output is correct
4 Correct 3 ms 12740 KB Output is correct
5 Correct 3 ms 12892 KB Output is correct
6 Correct 3 ms 12892 KB Output is correct
7 Correct 3 ms 12892 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 4 ms 12888 KB Output is correct
10 Correct 3 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 3 ms 12892 KB Output is correct
13 Correct 3 ms 12892 KB Output is correct
14 Correct 4 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12732 KB Output is correct
18 Correct 4 ms 13144 KB Output is correct
19 Correct 3 ms 13144 KB Output is correct
20 Correct 4 ms 12892 KB Output is correct
21 Correct 4 ms 12892 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12888 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 3 ms 12892 KB Output is correct
4 Correct 3 ms 12740 KB Output is correct
5 Correct 3 ms 12892 KB Output is correct
6 Correct 3 ms 12892 KB Output is correct
7 Correct 3 ms 12892 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 4 ms 12888 KB Output is correct
10 Correct 3 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 3 ms 12892 KB Output is correct
13 Correct 3 ms 12892 KB Output is correct
14 Correct 4 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12732 KB Output is correct
18 Correct 4 ms 13144 KB Output is correct
19 Correct 3 ms 13144 KB Output is correct
20 Correct 4 ms 12892 KB Output is correct
21 Correct 4 ms 12892 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct
23 Correct 4 ms 12892 KB Output is correct
24 Correct 4 ms 12892 KB Output is correct
25 Correct 4 ms 12888 KB Output is correct
26 Correct 4 ms 12892 KB Output is correct
27 Correct 4 ms 13036 KB Output is correct
28 Correct 5 ms 12888 KB Output is correct
29 Correct 4 ms 12892 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 4 ms 12800 KB Output is correct
32 Correct 4 ms 13144 KB Output is correct
33 Correct 5 ms 12892 KB Output is correct
34 Correct 4 ms 12892 KB Output is correct
35 Correct 5 ms 12892 KB Output is correct
36 Correct 4 ms 12984 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 4 ms 12888 KB Output is correct
39 Correct 4 ms 12892 KB Output is correct
40 Correct 4 ms 12988 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 4 ms 12892 KB Output is correct
44 Correct 4 ms 13000 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12888 KB Output is correct
2 Correct 3 ms 12892 KB Output is correct
3 Correct 3 ms 12892 KB Output is correct
4 Correct 3 ms 12740 KB Output is correct
5 Correct 3 ms 12892 KB Output is correct
6 Correct 3 ms 12892 KB Output is correct
7 Correct 3 ms 12892 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 4 ms 12888 KB Output is correct
10 Correct 3 ms 12892 KB Output is correct
11 Correct 3 ms 12892 KB Output is correct
12 Correct 3 ms 12892 KB Output is correct
13 Correct 3 ms 12892 KB Output is correct
14 Correct 4 ms 12892 KB Output is correct
15 Correct 3 ms 12892 KB Output is correct
16 Correct 3 ms 12892 KB Output is correct
17 Correct 3 ms 12732 KB Output is correct
18 Correct 4 ms 13144 KB Output is correct
19 Correct 3 ms 13144 KB Output is correct
20 Correct 4 ms 12892 KB Output is correct
21 Correct 4 ms 12892 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct
23 Correct 4 ms 12892 KB Output is correct
24 Correct 4 ms 12892 KB Output is correct
25 Correct 4 ms 12888 KB Output is correct
26 Correct 4 ms 12892 KB Output is correct
27 Correct 4 ms 13036 KB Output is correct
28 Correct 5 ms 12888 KB Output is correct
29 Correct 4 ms 12892 KB Output is correct
30 Correct 5 ms 12892 KB Output is correct
31 Correct 4 ms 12800 KB Output is correct
32 Correct 4 ms 13144 KB Output is correct
33 Correct 5 ms 12892 KB Output is correct
34 Correct 4 ms 12892 KB Output is correct
35 Correct 5 ms 12892 KB Output is correct
36 Correct 4 ms 12984 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 4 ms 12888 KB Output is correct
39 Correct 4 ms 12892 KB Output is correct
40 Correct 4 ms 12988 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 4 ms 12892 KB Output is correct
44 Correct 4 ms 13000 KB Output is correct
45 Correct 128 ms 21316 KB Output is correct
46 Correct 117 ms 21328 KB Output is correct
47 Correct 105 ms 21120 KB Output is correct
48 Correct 141 ms 21328 KB Output is correct
49 Correct 103 ms 20920 KB Output is correct
50 Correct 114 ms 21232 KB Output is correct
51 Correct 103 ms 21076 KB Output is correct
52 Correct 106 ms 21076 KB Output is correct
53 Correct 106 ms 21072 KB Output is correct
54 Correct 100 ms 23428 KB Output is correct
55 Correct 100 ms 23312 KB Output is correct
56 Correct 93 ms 23124 KB Output is correct
57 Correct 106 ms 23188 KB Output is correct
58 Correct 75 ms 18260 KB Output is correct
59 Correct 77 ms 18256 KB Output is correct
60 Correct 74 ms 22876 KB Output is correct
61 Correct 67 ms 16976 KB Output is correct
62 Correct 120 ms 21072 KB Output is correct
63 Correct 65 ms 16776 KB Output is correct
64 Correct 65 ms 16720 KB Output is correct
65 Correct 96 ms 20984 KB Output is correct
66 Correct 69 ms 16428 KB Output is correct