Submission #714828

# Submission time Handle Problem Language Result Execution time Memory
714828 2023-03-25T10:12:42 Z Huseyn123 Plahte (COCI17_plahte) C++17
0 / 160
2000 ms 524288 KB
#include <bits/stdc++.h>
#define MAX 300001
#define INF LLONG_MAX
#define MOD 1000000007
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ins insert
#define ff first
#define ss second
#define gett(x,m) get<m>(x)
#define all(a) a.begin(),a.end()
#define lb(a,b) lower_bound(all(a),b)
#define ub(a,b) upper_bound(all(a),b)
#define sortv(a) sort(all(a))
#define sorta(a,sz) sort(a,a+sz)
#define inputar(a,b){\
    for(int i=0;i<b;i++){\
        cin >> a[i];\
    }\
}
#define inputvec(a,b){\
    for(int i=0;i<b;i++){\
        ll num;\
        cin >> num;\
        a.pb(num);\
    }\
}
#define outputar(a,b){\
    for(int i=0;i<b;i++){\
        cout << a[i] << " ";\
    }\
    cout << "\n";\
}
#define outputvec(a){\
    for(auto x:a){\
        cout << x << " ";\
    }\
    cout << "\n";\
}
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef tuple<ll,ll,ll> tll;
typedef pair<ll,ll> pll;
typedef double db;
typedef long double ldb;
inline void USACO(string filename){
  freopen((filename+".in").c_str(),"r",stdin);
  freopen((filename+".out").c_str(),"w",stdout);
}
ll n,q,t=1,m,n2,m2,k,cnt=0,a[MAX],b[MAX],d[MAX],d2[MAX],x,y,z,x2,y2,z2,res1=0,cnt1,cnt2,cnt3;
ll c[501][501];
ll fact[MAX];
ll inv_fact[MAX];
//char c;
string str[MAX];
string s1,s2;
vector<tuple<ll,ll,ll>> v;
vector<pll> v1,v2,v3,v4;
const int mod = 998244353;
ll modmul(ll x,ll y,ll md){
    if(y==1){
        return x;
    }
    if(y%2){
        return (x+modmul(x,y-1,md))%md;
    }
    else{
        return (modmul((x+x)%md,y/2,md))%md;
    }
}
ll powmod(ll x,ll y,ll md){
    x%=md;
    if(x==0){
        return 0;
    }
    ll res=1;
    while(y){
        if(y%2==1){
            res*=x;
            res%=md;
        }
        x*=x;
        x%=md;
        y/=2;
    }
    return res;
}
ll pow2(ll x,ll y){
    if(x==0){
        return 0;
    }
    ll res=1;
    while(y>0){
        if(y%2==1){
            if(res>=1e18/x){
                res=1e18;
            }
            else{
                res*=x;
            }
        }
        if(x>=1e18/x){
            x=1e18;
        }
        else{
            x*=x;
        }
        y/=2;
    }
    return res;
}
ll inv(ll n,ll md){
    return powmod(n,md-2,md);
}
ll nCkm(ll n,ll k,ll md){
    if(n-k<0){
        return 0;
    }
    return fact[n]*inv_fact[k]%md*inv_fact[n-k]%md;
}
ll nCk(ll x,ll y){
    if(x<y){
        return 0;
    }
    ll res=1;
    if(y>x-y){
        for(int i=y+1;i<=x;i++){
            res*=i;
        }
        for(int i=2;i<=x-y;i++){
            res/=i;
        }
    }
    else{
        for(int i=x-y+1;i<=x;i++){
            res*=i;
        }
        for(int i=2;i<=y;i++){
            res/=i;
        }
    }
    return res;
}
ll countbits(ll x){
    ll cnt=0;
    while(x){
        cnt+=x&1;
        x>>=1;
    }
    return cnt;
}
ll gcd(ll x,ll y){
    if(y==0){
        return x;
    }
    return gcd(y,x%y);
}
ll lcm(ll x,ll y){
    return x*y/gcd(x,y);
}
bool alpha(char c1,char c2){
    ll h1,h2;
    if(c1>='a'){
        h1=c1-'a';
    }
    else{
        h1=c1-'A';
    }
    if(c2>='a'){
        h2=c2-'a';
    }
    else{
        h2=c2-'A';
    }
    if(h1==h2){
        return c1<c2;
    }
    else{
        return h1<h2;
    }
}
ll dx[4]={1,0,0,-1};
ll dy[4]={0,1,-1,0};
struct custom_hash {
   static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};
pll f(pll x,pll y){
    if(x.ff>y.ff || (x.ff==y.ff && x.ss<y.ss)){
        return mp(x.ff,x.ss);
    }
    else{
        return mp(y.ff,y.ss);
    }
}
struct segtree{
    int size;
    vector<pll> maximum;
    /*
    void build(vector<int> &a,int x,int lx,int rx){
        if(rx-lx==1){
            if(lx<(int)a.size()){
                maximum[x]=a[lx];
            }
            return;
        }
        int m=(lx+rx)/2;
        build(a,2*x+1,lx,m);
        build(a,2*x+2,m,rx);
        maximum[x]=max(maximum[2*x+1],maximum[2*x+2]);
    }
    void build(vector<int> &a){
        build(a,0,0,size);
    }
    */
    void init(int n){
        size=1;
        while(size<n){
            size*=2;
        }
        pll p={-INF,-1};
        maximum.assign(2*size,p);
    }
    pll get_max(int l,int r,int x,int lx,int rx){
        if(lx>=r || rx<=l){
            return mp(-INF,(ll)-1);
        }
        if(lx>=l && rx<=r){
            return maximum[x];
        }
        pll s1,s2;
        int m=(lx+rx)/2;
        s1=get_max(l,r,2*x+1,lx,m);
        s2=get_max(l,r,2*x+2,m,rx);
        return f(s1,s2);
    }
    pll get_max(int l,int r){
        return get_max(l,r,0,0,size);
    }
    void set(int i,int v,int num,int x,int lx,int rx){
        if(rx-lx==1){
            maximum[x]=pll(v,num);
            return;
        }
        int m=(lx+rx)/2;
        if(i<m){
            set(i,v,num,2*x+1,lx,m);
        }
        else{
            set(i,v,num,2*x+2,m,rx);
        }
        maximum[x]=f(maximum[2*x+1],maximum[2*x+2]);
    }
    void set(int i,int v,int num){
        set(i,v,num,0,0,size);
    }
};
vector<vector<ll>> g;
set<ll> cnte[MAX];
ll res[MAX];
ll used[MAX];
void dfs(ll v){
    used[v]=1;
    ll h=-1;
    ll ind=-1;
    for(auto x:g[v]){
        if(!used[x]){
            dfs(x);
        }
        if(cnte[x].size()>h){
            ind=x;
            h=cnte[x].size();
        }
    }
    if(ind!=-1){
        swap(cnte[v],cnte[ind]);
    }
    for(auto x:g[v]){
        if(x==ind){
            continue;
        }
        for(auto y:cnte[x]){
            cnte[v].ins(y);
        }
    }
    res[v]=max(res[v],(ll)cnte[v].size());
}
struct sheet{
    ll x,y,x1,y1;
};
struct ball{
    ll x,y,z;
};
sheet sheets[MAX];
ball balls[MAX];
void solve(){
    cin >> n >> m;
    g.resize(n+1);
    for(int i=0;i<n;i++){
        cin >> sheets[i].x >> sheets[i].y >> sheets[i].x1 >> sheets[i].y1;
    }
    for(int i=0;i<m;i++){
        cin >> balls[i].x >> balls[i].y >> balls[i].z;
    }
    unordered_map<ll,ll,custom_hash> c;
    vector<ll> d;
    for(int i=0;i<n;i++){
        d.pb(sheets[i].x);
        d.pb(sheets[i].x1);
    }
    for(int i=0;i<m;i++){
        d.pb(balls[i].x);
    }
    sortv(d);
    ll cnt=0;
    for(int i=0;i<2*n+m;i++){
        if(i && d[i]==d[i-1]){
            continue;
        }
        c[d[i]]=cnt;
        cnt++;
    }
    for(int i=0;i<n;i++){
        sheets[i].x=c[sheets[i].x];
        sheets[i].x1=c[sheets[i].x1];
    }
    for(int i=0;i<m;i++){
        balls[i].x=c[balls[i].x];
    }
    c.clear();
    d.clear();
    for(int i=0;i<n;i++){
        d.pb(sheets[i].y);
        d.pb(sheets[i].y1);
    }
    for(int i=0;i<m;i++){
        d.pb(balls[i].y);
    }
    sortv(d);
    cnt=0;
    for(int i=0;i<2*n+m;i++){
        if(i && d[i]==d[i-1]){
            continue;
        }
        c[d[i]]=cnt;
        cnt++;
    }
    for(int i=0;i<n;i++){
        sheets[i].y=c[sheets[i].y];
        sheets[i].y1=c[sheets[i].y1];
    }
    for(int i=0;i<m;i++){
        balls[i].y=c[balls[i].y];
    }
    segtree st;
    st.init(2*n+m);
    pll line[2*n+m];
    vector<vector<ll>> start(2*n+m);
    vector<vector<ll>> ended(2*n+m);
    for(int i=0;i<n;i++){
        start[sheets[i].x].pb(i);
        ended[sheets[i].x1].pb(i);
    }
    for(int i=0;i<2*n+m;i++){
        for(auto sh:start[i]){
            line[sheets[sh].y]=(mp(i,sh));
            st.set(sheets[sh].y,i,sh);
        }
        for(auto sh:ended[i]){
            line[sheets[sh].y]=mp(-INF,-1);
            st.set(sheets[sh].y,-INF,-1);
            pll p=st.get_max(0,sheets[sh].y);
            if(p.ss!=-1){
                g[p.ss].pb(sh);
            }
        }
    }
    vector<vector<pll>> vec(2*n+m);
    for(int i=0;i<m;i++){
        vec[balls[i].x].pb(mp(balls[i].y,balls[i].z));
    }
    vector<ll> arr(2*n+m,-1);
    for(int i=0;i<2*n+m;i++){
        for(auto sh:start[i]){
            arr[sheets[sh].y]=sh;
        }
        for(auto bl:vec[i]){
            ll h=-1;
            for(int j=bl.ff;j>=0;j--){
                if(arr[j]==-1){
                    continue;
                }
                if(bl.ff>=sheets[arr[j]].y && bl.ff<=sheets[arr[j]].y1){
                    h=arr[j];
                    break;
                }
            }
            if(h!=-1){
                cnte[h].ins(bl.ss);
            }
        }
        for(auto sh:ended[i]){
            arr[sheets[sh].y]=-1;
        }
    }
    for(int i=0;i<n;i++){
        if(!used[i]){
            dfs(i);
        }
    }
    for(int i=0;i<n;i++){
        cout << res[i] << "\n";
    }
}
int main(){
    //ios::sync_with_stdio(0);
    //cin.tie(0);
    //cout.tie(0);
    //USACO("poetry");
    //freopen("input.txt","r",stdin);
    //cin >> t;
    ll cnt1=1;
    while(t--){
        solve();
        cnt1++;
    }
}
/*
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
ifstream fin("template.in");
ofstream fout("template.out");
*/
/*
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
ifstream fin("template.in");
ofstream fout("template.out");
*/
/*
ll b[51][51];
b[0][0] = 1;
    for (int n = 1; n <= 50; ++n){
        b[n][0] = b[n][n] = 1;
        for (int k = 1; k < n; ++k)
            b[n][k] = b[n - 1][k - 1] + b[n - 1][k];
    }
*/

Compilation message

plahte.cpp: In function 'void dfs(ll)':
plahte.cpp:281:26: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
  281 |         if(cnte[x].size()>h){
      |            ~~~~~~~~~~~~~~^~
plahte.cpp: In function 'void solve()':
plahte.cpp:382:33: warning: overflow in conversion from 'long long int' to 'int' changes value from '-9223372036854775807' to '1' [-Woverflow]
  382 |             st.set(sheets[sh].y,-INF,-1);
      |                                 ^
# Verdict Execution time Memory Grader output
1 Runtime error 1949 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Runtime error 1985 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 2068 ms 470524 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 2066 ms 244256 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 2059 ms 89088 KB Time limit exceeded
2 Halted 0 ms 0 KB -