Submission #465928

#	Time	Username	Problem	Language	Result	Execution time	Memory
465928		Nihal_9936	Sails (IOI07_sails)	C++17	60 / 100	296 ms	11912 KiB

sails

#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp> 
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds; 

template <typename num_t>
using ordered_set = tree<num_t, null_type, less<num_t>, rb_tree_tag, tree_order_statistics_node_update>;
 
#ifdef  pikachu
   #include  "welcome_to_python_is_slower_than_c++_club.h"
#else
    #include <bits/stdc++.h>
     using namespace std;
    #define debug(...) 69
#endif
 
 
template<typename T1, typename T2>istream& operator>>(istream& in, pair<T1, T2>& a) { return in >> a.first >> a.second; }
template<typename T1, typename T2>ostream& operator<<(ostream& out, pair<T1, T2> a) { return out << a.first << " " << a.second;}
template<typename T> void print(T t) { cout << t <<' '; }
template<typename T, typename... Args> void print(T t, Args... args) { print(t);print(args...); }
string operator*=(string& s, int cnt) { string t = s;for (size_t i = 1; i < cnt; i++)s += t;return s; }
string operator*(string s, int cnt) { return s *= cnt; }
 
 
#define int               long long 
#define pb                push_back
#define ppb               pop_back
#define pf                push_front
#define ppf               pop_front
#define all(x)            (x).begin(),(x).end()
#define allr(x)           (x).rbegin(),(x).rend()
#define uniq(v)           (v).erase(unique(all(v)),(v).end())
#define len(x)             (int)((x).size())
#define bk                back()
#define elif              else if
#define add               insert
#define append            push_back
#define pop               pop_back 
#define str               string
#define in                :
#define fr                first
#define sc                second
#define pii               pair<int,int>
#define vi                vector<int>
#define vii               vector<pii>
#define mi                map<int,int>
#define mii               map<pii,int>
#define rep(i,a,b)        for(int i=a;i<b;i++)
#define rrep(i,a,b)       for(int i=a;i>b;i--)
#define el                 '\n'
#define printl(arg) cout << arg << endl
// #define print(arg) cout << arg
#define inputa(arg) for (auto& e : arg) cin >> e
#define printa(arg) for (auto& e : arg) print(e);
#define printr(arg) { printl(arg);return; }
#define printd(arg) printf("%0.3lf\n", arg)
 
 
const int mod=1e9+7;
const int INF=1e18;
const int MAX_N= 1e5+10;

 
int n,m,k,x,y,z,t,q,counter;


int s_tree[MAX_N*4][2],lazy[MAX_N*4];
int lazy_def=0;
vi a;
int ans;
bool bol;



void solve_lazy(int i_tree,int left ,int right,int vl){
    s_tree[i_tree][0]+=vl;
    s_tree[i_tree][1]+=vl*(right-left+1);
    if(left!=right){
        lazy[i_tree*2]+=vl;
        lazy[i_tree*2+1]+=vl;
    }
    lazy[i_tree]=lazy_def;

}

void update(int i_tree,int left,int right,int l,int r,int vl){
    if(lazy[i_tree]!=lazy_def){
        solve_lazy(i_tree,left,right,lazy[i_tree]);
    }
    if(right<l or left>r) return;
    if(l<=left and right<=r){
        solve_lazy(i_tree,left,right,vl);
        return;
    }
    int mid=(left+right)/2;
    update(i_tree*2,left,mid,l,r,vl);
    update(i_tree*2+1,mid+1,right,l,r,vl);
    s_tree[i_tree][0]=max(s_tree[i_tree*2][0],s_tree[i_tree*2+1][0]);
    s_tree[i_tree][1]=s_tree[i_tree*2][1]+s_tree[i_tree*2+1][1];
}

void query(int i_tree,int left,int right,int vl){
    if(lazy[i_tree]!=lazy_def){
        solve_lazy(i_tree,left,right,lazy[i_tree]);
    }
    if (s_tree[i_tree][0]<vl) return;

    if(left==right){
        ans=left;
        if(s_tree[i_tree][0]==vl) bol=true;
        return;
    }

    int mid=(left+right)/2;

    

    if(lazy[i_tree*2 +1]!=lazy_def){
        solve_lazy(i_tree*2 + 1,mid+1,right,lazy[i_tree*2 + 1]);
    }
    if(s_tree[i_tree*2+1][0]>vl){
        query(i_tree*2+1,mid+1,right,vl);
        return;
    }
    if(lazy[i_tree*2]!=lazy_def){
        solve_lazy(i_tree*2,left,mid,lazy[i_tree*2]);
    }
    query(i_tree*2,left,mid,vl);

}

void get(int i_tree,int left,int right,int i){

    if(i<left or i>right) return;

    if(lazy[i_tree]!=lazy_def){
        solve_lazy(i_tree,left,right,lazy[i_tree]);
    }

    if(left==right){
        ans=s_tree[i_tree][0];
        return;
    }
    int mid=(left+right)/2;
    get(i_tree*2,left,mid,i);
    get(i_tree*2+1,mid+1,right,i);

}
void get_sum(int i_tree,int left,int right,int l,int r){
    if(lazy[i_tree]!=lazy_def){
        solve_lazy(i_tree,left,right,lazy[i_tree]);
    }
    if(right<l or left>r) return;
    if(l<=left and right<=r){
        ans+=s_tree[i_tree][1];
        return;
    }
    int mid=(left+right)/2;
    get_sum(i_tree*2,left,mid,l,r);
    get_sum(i_tree*2+1,mid+1,right,l,r);

}

void code(){
            cin>>n;
            vector<vector<int>>a;
            rep(i,0,n){
                cin>>x>>y;
                a.append({x,y});
            }
            sort(all(a));
            int tot=0;
            for(auto& i in a){
                if(i[0]==i[1]){
                    ans=0;
                    get_sum(1,0,n-1,0,i[0]-1);
                    tot+=ans;
                    update(1,0,n-1,0,i[0]-1,1);
                    continue;
                }else{
                    int vl,f,l;
                    get(1,0,n-1,i[0]-i[1]);
                    vl=ans;

                    bol=false;
                    query(1,0,n-1,vl);
                    f=ans;
                    if(not bol) f++;

                    if(not vl) l=i[0]-1;
                    else{
                        query(1,0,n-1,vl-1);
                        l=min(i[0]-1,ans);
                    }

                    if(l<i[0]-1){
                        ans=0;
                        get_sum(1,0,n-1,l+1,i[0]-1);
                        tot+=ans;
                        update(1,0,n-1,l+1,i[0]-1,1);
                        i[1]-=i[0]-l-1;
                    }

                    ans=0;
                    get_sum(1,0,n-1,f,f+i[1]-1);
                    tot+=ans;
                    update(1,0,n-1,f,f+i[1]-1,1);


                }
            }            

            cout<<tot<<el;

            
            


}


signed main()
{

    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);

    // freopen("cardgame.in", "r", stdin);
    // freopen("cardgame.out", "w", stdout);

    int t = 1;
    // cin>>t;
    while(t--) code();
    return 0;
}

Compilation message (stderr)

sails.cpp: In function 'std::string operator*=(std::string&, int)':
sails.cpp:24:75: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 | string operator*=(string& s, int cnt) { string t = s;for (size_t i = 1; i < cnt; i++)s += t;return s; }
      |                                                                         ~~^~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 10 / 10