Submission #920466

#	Time	Username	Problem	Language	Result	Execution time	Memory
920466		NotLinux	Meteors (POI11_met)	C++17	74 / 100	724 ms	65536 KiB

met

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 3e5 + 7;
struct FENWICK{
    int fen[N];
    int sz;
    inline void init(int x){
        sz = x+3;
        memset(fen , 0 , sizeof(fen));
    }
    inline void update(int p , int x)  {
        while(p <= sz){
            fen[p] += x;
            p += p & (-p);
            //cout << "update:" << p << " " << sz << endl;
        }
    }
    inline int query(int x){
        int ret = 0;
        while(x != 0){
            ret += fen[x];
            x -= x & (-x);
            //cout <<"query:"<< x << endl;
        }
        return ret;
    }
    inline void rangeupdate(int l , int r,int x){
        update(l,x);
        if(r != sz)update(r+1,-x);
    }
};
 
void solve(){
    int n,m;cin >> n >> m;
    vector < int > devlet[n+1];
    for(int i = 1;i<=m;i++){
        int x;cin >> x;
        devlet[x].push_back(i);
    }
    int need[n+1];
    for(int i = 1;i<=n;i++){
        cin >> need[i];
    }
    int q;cin >> q;
    vector < array < int , 3 > > query(q+1);
    for(int i = 1;i<=q;i++){
        cin >> query[i][0] >> query[i][1] >> query[i][2];
    }
 
    vector < array < int , 3 > > paralel[q+2],nparalel[q+2];
    for(int i = 1;i<=n;i++){
        paralel[(1+q+1)/2].push_back({i,1,q+1});
    }
    FENWICK fen;
    for(int i = 0;i<=19;i++){
        fen.init(m+10);
        for(int j = 1;j<=q;j++){
            if(query[j][0] <= query[j][1]){
                fen.rangeupdate(query[j][0],query[j][1],query[j][2]);
            }
            else{
                fen.rangeupdate(1,query[j][1],query[j][2]);
                fen.rangeupdate(query[j][0],m+1,query[j][2]);
            }
            for(auto itr : paralel[j]){
                if(itr[1] == itr[2]){
                    nparalel[j].push_back(itr);
                    continue;
                }
                int cur = 0;
                for(auto itr1 : devlet[itr[0]]){
                    cur += fen.query(itr1);
                }
                if(cur >= need[itr[0]]){//r = mid;
                    int mid = (itr[1] + j)/2;
                    nparalel[mid].push_back({itr[0],itr[1],j});
                }
                else {//l = mid
                    int mid = (j+1 + itr[2])/2;
                    nparalel[mid].push_back({itr[0],j+1,itr[2]});
                }
            }
        }
        for(int j = 1;j<=q;j++){
            paralel[j].swap(nparalel[j]);
            nparalel[j].clear();
        }
    }
    int ans[n+1];
    memset(ans , -1 , sizeof(ans));
    for(int j = 1;j<=q;j++){
        for(auto itr : paralel[j]){
            ans[itr[0]] = j;
        }
    }
    for(int i = 1;i<=n;i++){
        if(ans[i] == -1)cout << "NIE" << '\n';
        else cout << ans[i] << '\n';
    }
}
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int testcase = 1;//cin >> testcase;
    while(testcase--)solve();
}

• Subtask 1: 12 / 12
• Subtask 2: 12 / 12
• Subtask 3: 12 / 12
• Subtask 4: 12 / 12
• Subtask 5: 13 / 13
• Subtask 6: 13 / 13
• Subtask 7: 0 / 13
• Subtask 8: 0 / 13