oj.uz

Submission #225025

# Submission time Handle Problem Language Result Execution time Memory
225025 2020-04-19T08:14:36 Z mehrdad_sohrabi ČVENK (COI15_cvenk) C++14
60 / 100
 3000 ms 265448 KB 
#include <bits/stdc++.h>
typedef long long int ll;
typedef long double ld;
#define pb push_back
#define pii pair < ll , ll >
#define F first
#define S second
#define endl '\n'
//#define int long long
#define sync ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#define kill(x) return cout<<x<<'\n', 0;
using namespace std;
const int N=3e5+100,M=60;
vector <int> g[N];
map <pii,int> mp;
int w[N*32];
pii nod[N*32];
int par[N*32];
int sz[N*32];
ll dp[N*32];
int n;
ll ma=(ll)1e15;
void dfssz(ll v){
    sz[v]=w[v];
    for (auto u : g[v]){
        dfssz(u);
        sz[v]+=sz[u];
    }
}
void dfsdp(ll v){
    for (auto u : g[v]){
        dfsdp(u);
        dp[v]+=dp[u];
        ll e=nod[u].F-nod[v].F+nod[u].S-nod[v].S;
        dp[v]+=(ll)sz[u]*e;
    }
}
void dfs(ll v){
    ma=min(ma,dp[v]);
    for (auto u : g[v]){
        ll e=nod[u].F-nod[v].F+nod[u].S-nod[v].S;
        dp[u]=(ll)dp[v]+(ll)e*(ll)n-(ll)2*(ll)e*(ll)sz[u];
        dfs(u);
    }
}
int32_t main(){
    sync;
    scanf("%d",&n);
   // cin >> n;
    vector <pii> a;
    int cnt=2;
    mp[{0,0}]=1;
    nod[1]={0,0};
    for (int i=0;i<n;i++){
        int r,s;
        scanf("%d %d",&r,&s);
        //cin >> r >> s;
        int f=r,h=s;
        int x=0,y=0;
        for (int j=M/2;j>-1;j--){
            int z=x,t=y;
            if ((r-x)>=(1<<j)){
                x+=(1<<j);
            }
            if (mp[{x,y}]==0){
                nod[cnt]={x,y};
                par[cnt]=mp[{z,t}];
                mp[{x,y}]=cnt++;
            }
            a.pb({x,y});
            if ((s-y)>=(1<<j)){
                y+=(1<<j);
            }
            a.pb({x,y});
            if (mp[{x,y}]==0){
                nod[cnt]={x,y};
                //  cout << x << " " << y << endl;
                par[cnt]=mp[{z,t}];
                mp[{x,y}]=cnt++;
            }
        }
        w[mp[{r,s}]]++;
    }
    a.pb({0,0});
    sort(a.begin(),a.end());
    a.resize(unique(a.begin(), a.end()) - a.begin());
    for (int i=1;i<a.size();i++){
        if (a[i].F==a[i-1].F && nod[par[mp[a[i]]]].S<=nod[mp[a[i-1]]].S && nod[par[mp[a[i]]]].F==nod[mp[a[i-1]]].F){
            par[mp[a[i]]]=mp[a[i-1]];
        }
    }
    vector <pii> b;
    for (int i=0;i<a.size();i++){
        swap(a[i].F,a[i].S);
        b.pb(a[i]);
        swap(a[i].F,a[i].S);
    }
    sort(b.begin(),b.end());
    for (int i=1;i<b.size();i++){
        pii d=b[i],e=b[i-1];
        swap(d.F,d.S);
        swap(e.F,e.S);
        if (b[i].F==b[i-1].F && nod[par[mp[d]]].F<=nod[mp[e]].F && nod[par[mp[d]]].S==nod[mp[e]].S){
            par[mp[d]]=mp[e];
           // cout << nod[par[mp[{2,1}]]].F << " argers " << nod[par[mp[{2,1}]]].S << endl;
        }
    }
    for (int i=1;i<a.size();i++){
        g[par[mp[a[i]]]].pb(mp[a[i]]);
    //   cout << par[mp[a[i]]] << " " << mp[a[i]] << " " << nod[mp[a[i]]].F << " " << nod[mp[a[i]]].S << " " <<  nod[par[mp[a[i]]]].F << " " << nod[par[mp[a[i]]]].S << endl;
    }
    dfssz(mp[{0,0}]);
    dfsdp(mp[{0,0}]);
    dfs(mp[{0,0}]);
    printf("%lld",ma);
   // cout << ans-(1<<28);


}
/*
9
28 0
25 4
20 9
20 0
18 13
16 12
16 5
4 9
10 16
*/

Compilation message

cvenk.cpp: In function 'int32_t main()':
cvenk.cpp:59:13: warning: unused variable 'f' [-Wunused-variable]
         int f=r,h=s;
             ^
cvenk.cpp:59:17: warning: unused variable 'h' [-Wunused-variable]
         int f=r,h=s;
                 ^
cvenk.cpp:88:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=1;i<a.size();i++){
                  ~^~~~~~~~~
cvenk.cpp:94:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0;i<a.size();i++){
                  ~^~~~~~~~~
cvenk.cpp:100:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=1;i<b.size();i++){
                  ~^~~~~~~~~
cvenk.cpp:109:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=1;i<a.size();i++){
                  ~^~~~~~~~~
cvenk.cpp:49:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
cvenk.cpp:57:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&r,&s);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 8 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 7808 KB Output is correct
2 Correct 10 ms 7808 KB Output is correct
3 Correct 10 ms 7680 KB Output is correct
4 Correct 10 ms 7680 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 621 ms 139376 KB Output is correct
2 Correct 644 ms 139464 KB Output is correct
3 Correct 474 ms 138976 KB Output is correct
4 Correct 463 ms 138972 KB Output is correct
5 Correct 525 ms 138972 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3091 ms 265448 KB Time limit exceeded
2 Halted 0 ms 0 KB -