oj.uz

답안 #914405

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
914405 2024-01-22T03:24:43 Z guagua0407 Examination (JOI19_examination) C++17
100 / 100
 368 ms 11300 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

struct node{
    int x,y,z,id;
    bool operator<(const node &a)const{
        if(x!=a.x) return x<a.x;
        if(y!=a.y) return y<a.y;
        if(z!=a.z) return z<a.z;
        return a.id<id;
    }
};

vector<node>vec;
const int mxn=2e5+5;
int ans[mxn];
int bit[mxn];

void update(int pos,int val){
    for(;pos<mxn;pos+=(pos&-pos)){
        bit[pos]+=val;
    }
}

int query(int pos){
    int ans=0;
    for(;pos;pos-=(pos&-pos)){
        ans+=bit[pos];
    }
    return ans;
}

bool comp(node a,node b){
    return a.y<b.y;
}

void go(int l,int r){
    if(l==r){
        return;
    }
    int mid=(l+r)/2;
    go(l,mid);
    go(mid+1,r);
    int R=r;
    for(int L=mid;L>=l;L--){
        while(R>mid and vec[R].y>=vec[L].y){
            if(vec[R].id==-1){
                update(vec[R].z,1);
            }
            R--;
        }
        if(vec[L].id!=-1){
            ans[vec[L].id]+=query(mxn-1)-query(vec[L].z-1);
        }
    }
    R++;
    while(R<=r){
        if(vec[R].id==-1){
            update(vec[R].z,-1);
        }
        R++;
    }
    sort(vec.begin()+l,vec.begin()+r+1,comp);
}

int main() {_
    int n,m;
    cin>>n>>m;
    vec.resize(n+m);
    for(int i=0;i<n;i++){
        cin>>vec[i].x>>vec[i].y;
        vec[i].z=vec[i].x+vec[i].y;
        vec[i].id=-1;
    }
    for(int i=n;i<n+m;i++){
        cin>>vec[i].x>>vec[i].y>>vec[i].z;
        vec[i].id=i-n;
    }
    vector<int> zs;
    zs.push_back(-1);
    for(int i=0;i<n+m;i++){
        zs.push_back(vec[i].z);
    }
    sort(all(zs));
    zs.resize(unique(all(zs))-zs.begin());
    for(int i=0;i<n+m;i++){
        vec[i].z=lower_bound(all(zs),vec[i].z)-zs.begin();
    }
    sort(all(vec));
    go(0,n+m-1);
    for(int i=0;i<m;i++){
        cout<<ans[i]<<'\n';
    }
    return 0;
}
//maybe its multiset not set
//yeeorz
//laborz

Compilation message

examination.cpp: In function 'void setIO(std::string)':
examination.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 460 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 7 ms 728 KB Output is correct
8 Correct 8 ms 604 KB Output is correct
9 Correct 7 ms 604 KB Output is correct
10 Correct 6 ms 604 KB Output is correct
11 Correct 6 ms 732 KB Output is correct
12 Correct 4 ms 600 KB Output is correct
13 Correct 7 ms 600 KB Output is correct
14 Correct 7 ms 604 KB Output is correct
15 Correct 7 ms 796 KB Output is correct
16 Correct 7 ms 604 KB Output is correct
17 Correct 5 ms 604 KB Output is correct
18 Correct 4 ms 604 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 322 ms 8408 KB Output is correct
2 Correct 316 ms 8064 KB Output is correct
3 Correct 324 ms 8308 KB Output is correct
4 Correct 200 ms 7420 KB Output is correct
5 Correct 246 ms 7428 KB Output is correct
6 Correct 141 ms 6460 KB Output is correct
7 Correct 304 ms 8112 KB Output is correct
8 Correct 300 ms 8140 KB Output is correct
9 Correct 295 ms 8004 KB Output is correct
10 Correct 196 ms 7112 KB Output is correct
11 Correct 171 ms 7172 KB Output is correct
12 Correct 132 ms 5920 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 322 ms 8408 KB Output is correct
2 Correct 316 ms 8064 KB Output is correct
3 Correct 324 ms 8308 KB Output is correct
4 Correct 200 ms 7420 KB Output is correct
5 Correct 246 ms 7428 KB Output is correct
6 Correct 141 ms 6460 KB Output is correct
7 Correct 304 ms 8112 KB Output is correct
8 Correct 300 ms 8140 KB Output is correct
9 Correct 295 ms 8004 KB Output is correct
10 Correct 196 ms 7112 KB Output is correct
11 Correct 171 ms 7172 KB Output is correct
12 Correct 132 ms 5920 KB Output is correct
13 Correct 355 ms 8724 KB Output is correct
14 Correct 344 ms 8656 KB Output is correct
15 Correct 322 ms 8168 KB Output is correct
16 Correct 232 ms 7888 KB Output is correct
17 Correct 283 ms 7884 KB Output is correct
18 Correct 149 ms 6352 KB Output is correct
19 Correct 349 ms 8736 KB Output is correct
20 Correct 347 ms 8800 KB Output is correct
21 Correct 344 ms 8704 KB Output is correct
22 Correct 203 ms 7296 KB Output is correct
23 Correct 171 ms 7168 KB Output is correct
24 Correct 130 ms 6096 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 460 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 7 ms 728 KB Output is correct
8 Correct 8 ms 604 KB Output is correct
9 Correct 7 ms 604 KB Output is correct
10 Correct 6 ms 604 KB Output is correct
11 Correct 6 ms 732 KB Output is correct
12 Correct 4 ms 600 KB Output is correct
13 Correct 7 ms 600 KB Output is correct
14 Correct 7 ms 604 KB Output is correct
15 Correct 7 ms 796 KB Output is correct
16 Correct 7 ms 604 KB Output is correct
17 Correct 5 ms 604 KB Output is correct
18 Correct 4 ms 604 KB Output is correct
19 Correct 322 ms 8408 KB Output is correct
20 Correct 316 ms 8064 KB Output is correct
21 Correct 324 ms 8308 KB Output is correct
22 Correct 200 ms 7420 KB Output is correct
23 Correct 246 ms 7428 KB Output is correct
24 Correct 141 ms 6460 KB Output is correct
25 Correct 304 ms 8112 KB Output is correct
26 Correct 300 ms 8140 KB Output is correct
27 Correct 295 ms 8004 KB Output is correct
28 Correct 196 ms 7112 KB Output is correct
29 Correct 171 ms 7172 KB Output is correct
30 Correct 132 ms 5920 KB Output is correct
31 Correct 355 ms 8724 KB Output is correct
32 Correct 344 ms 8656 KB Output is correct
33 Correct 322 ms 8168 KB Output is correct
34 Correct 232 ms 7888 KB Output is correct
35 Correct 283 ms 7884 KB Output is correct
36 Correct 149 ms 6352 KB Output is correct
37 Correct 349 ms 8736 KB Output is correct
38 Correct 347 ms 8800 KB Output is correct
39 Correct 344 ms 8704 KB Output is correct
40 Correct 203 ms 7296 KB Output is correct
41 Correct 171 ms 7168 KB Output is correct
42 Correct 130 ms 6096 KB Output is correct
43 Correct 364 ms 10928 KB Output is correct
44 Correct 360 ms 11300 KB Output is correct
45 Correct 368 ms 10988 KB Output is correct
46 Correct 238 ms 9416 KB Output is correct
47 Correct 289 ms 9332 KB Output is correct
48 Correct 154 ms 6136 KB Output is correct
49 Correct 347 ms 10896 KB Output is correct
50 Correct 347 ms 11008 KB Output is correct
51 Correct 343 ms 10864 KB Output is correct
52 Correct 228 ms 9344 KB Output is correct
53 Correct 189 ms 8144 KB Output is correct