oj.uz

답안 #1079772

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1079772 2024-08-29T01:08:11 Z vjudge1 Examination (JOI19_examination) C++17
100 / 100
 486 ms 41944 KB 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
 
#define int long long
typedef long double ld;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef stack<int> si;
typedef queue<int> qi;
typedef deque<int> di;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
 
#define endl '\n'
#define pb push_back
#define FOR(i,a,b) for(int i = a; i <= b; i++)
#define BACK(i,a,b) for(int i = a; i >= b; i--)
#define fastIO ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#define fi first
#define se second
#define gcd __gcd
#define setmin(x,y) x=min((x),(y))
#define setmax(x,y) x=max((x),(y))
 
const int MAXN=1e5+5;
const long long inf=1e18;
const int MOD=1e9+7;
 
struct query
{
	int x,y,z,idx;
	query(const int& x,const int& y,const int& z,const int& idx):x(x),y(y),z(z),idx(idx){}
	bool operator <(const query& other) {return z>other.z;}
};
 
struct stud
{
	int s,t;
	stud(const int& s,const int& t):s(s),t(t){}
	bool operator <(const stud& other) {return s+t>other.s+other.t;}
};
 
vector<query> q;
vector<stud> st;
int n,m,ans[MAXN];
vector<int> xs,ys;
vector<vector<int>> node,bit;
 
void fakeupd(int x,int y)
{
	for(;x<=xs.size();x+=x&-x) node[x].pb(y);
}
 
void fakeget(int x,int y)
{
	for(;x>0;x-=x&-x) node[x].pb(y);
}
 
void upd(int x,int yy)
{
	for(;x<=xs.size();x+=x&-x) for(int y=lower_bound(node[x].begin(),node[x].end(),yy)-node[x].begin()+1;y<=node[x].size();y+=y&-y) bit[x][y-1]++;
}
 
int get(int x,int yy)
{
	int res=0;
	for(;x>0;x-=x&-x) for(int y=upper_bound(node[x].begin(),node[x].end(),yy)-node[x].begin();y>0;y-=y&-y) res+=bit[x][y-1];
	return res;
}
 
int xid(const int& x)
{
	return lower_bound(xs.begin(),xs.end(),x,greater<int>())-xs.begin();
}
 
int yid(const int& y)
{
	return lower_bound(ys.begin(),ys.end(),y,greater<int>())-ys.begin();
}
 
signed main()
{
	fastIO
	// freopen("in.txt","r",stdin);
	// freopen("out.txt","w",stdout);
	cin>>n>>m;
	FOR(i,0,n-1) {int s,t; cin>>s>>t; st.emplace_back(s,t); xs.pb(s); ys.pb(t);}
	FOR(i,0,m-1) {int x,y,z; cin>>x>>y>>z; q.emplace_back(x,y,z,i); xs.pb(x); ys.pb(y);}
	sort(xs.begin(),xs.end(),greater<int>());
	xs.erase(unique(xs.begin(),xs.end()),xs.end());
	sort(ys.begin(),ys.end(),greater<int>());
	ys.erase(unique(ys.begin(),ys.end()),ys.end());
	node.resize(xs.size()+1);
	bit.resize(xs.size()+1);
	FOR(i,0,n-1) fakeupd(xid(st[i].s)+1,yid(st[i].t));
	FOR(i,1,xs.size())
	{
		sort(node[i].begin(),node[i].end());
		node[i].erase(unique(node[i].begin(),node[i].end()),node[i].end());
		bit[i].resize(node[i].size());
	}
	sort(st.begin(),st.end()); sort(q.begin(),q.end());
	int cur=0;
	FOR(i,0,m-1)
	{
		while(cur<n&&st[cur].s+st[cur].t>=q[i].z) {upd(xid(st[cur].s)+1,yid(st[cur].t)); cur++;}
		ans[q[i].idx]=get(xid(q[i].x)+1,yid(q[i].y));
	}
	FOR(i,0,m-1) cout<<ans[i]<<endl;
}

Compilation message

examination.cpp: In function 'void fakeupd(long long int, long long int)':
examination.cpp:53:8: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |  for(;x<=xs.size();x+=x&-x) node[x].pb(y);
      |       ~^~~~~~~~~~~
examination.cpp: In function 'void upd(long long int, long long int)':
examination.cpp:63:8: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |  for(;x<=xs.size();x+=x&-x) for(int y=lower_bound(node[x].begin(),node[x].end(),yy)-node[x].begin()+1;y<=node[x].size();y+=y&-y) bit[x][y-1]++;
      |       ~^~~~~~~~~~~
examination.cpp:63:104: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |  for(;x<=xs.size();x+=x&-x) for(int y=lower_bound(node[x].begin(),node[x].end(),yy)-node[x].begin()+1;y<=node[x].size();y+=y&-y) bit[x][y-1]++;
      |                                                                                                       ~^~~~~~~~~~~~~~~~
examination.cpp: In function 'int main()':
examination.cpp:18:37: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 | #define FOR(i,a,b) for(int i = a; i <= b; i++)
......
   98 |  FOR(i,1,xs.size())
      |      ~~~~~~~~~~~~~                   
examination.cpp:98:2: note: in expansion of macro 'FOR'
   98 |  FOR(i,1,xs.size())
      |  ^~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 8 ms 1372 KB Output is correct
8 Correct 7 ms 1400 KB Output is correct
9 Correct 10 ms 1412 KB Output is correct
10 Correct 5 ms 1372 KB Output is correct
11 Correct 4 ms 860 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 7 ms 1372 KB Output is correct
14 Correct 6 ms 1372 KB Output is correct
15 Correct 7 ms 1580 KB Output is correct
16 Correct 4 ms 860 KB Output is correct
17 Correct 4 ms 1372 KB Output is correct
18 Correct 1 ms 860 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 367 ms 32956 KB Output is correct
2 Correct 363 ms 32444 KB Output is correct
3 Correct 372 ms 32964 KB Output is correct
4 Correct 161 ms 27840 KB Output is correct
5 Correct 156 ms 13760 KB Output is correct
6 Correct 62 ms 12732 KB Output is correct
7 Correct 372 ms 30396 KB Output is correct
8 Correct 343 ms 33168 KB Output is correct
9 Correct 368 ms 30476 KB Output is correct
10 Correct 98 ms 12120 KB Output is correct
11 Correct 133 ms 27916 KB Output is correct
12 Correct 55 ms 11456 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 367 ms 32956 KB Output is correct
2 Correct 363 ms 32444 KB Output is correct
3 Correct 372 ms 32964 KB Output is correct
4 Correct 161 ms 27840 KB Output is correct
5 Correct 156 ms 13760 KB Output is correct
6 Correct 62 ms 12732 KB Output is correct
7 Correct 372 ms 30396 KB Output is correct
8 Correct 343 ms 33168 KB Output is correct
9 Correct 368 ms 30476 KB Output is correct
10 Correct 98 ms 12120 KB Output is correct
11 Correct 133 ms 27916 KB Output is correct
12 Correct 55 ms 11456 KB Output is correct
13 Correct 404 ms 32620 KB Output is correct
14 Correct 400 ms 32704 KB Output is correct
15 Correct 423 ms 32704 KB Output is correct
16 Correct 188 ms 28352 KB Output is correct
17 Correct 150 ms 14852 KB Output is correct
18 Correct 63 ms 13504 KB Output is correct
19 Correct 427 ms 33112 KB Output is correct
20 Correct 401 ms 33472 KB Output is correct
21 Correct 398 ms 32192 KB Output is correct
22 Correct 102 ms 11960 KB Output is correct
23 Correct 136 ms 27076 KB Output is correct
24 Correct 41 ms 12276 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 8 ms 1372 KB Output is correct
8 Correct 7 ms 1400 KB Output is correct
9 Correct 10 ms 1412 KB Output is correct
10 Correct 5 ms 1372 KB Output is correct
11 Correct 4 ms 860 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 7 ms 1372 KB Output is correct
14 Correct 6 ms 1372 KB Output is correct
15 Correct 7 ms 1580 KB Output is correct
16 Correct 4 ms 860 KB Output is correct
17 Correct 4 ms 1372 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 367 ms 32956 KB Output is correct
20 Correct 363 ms 32444 KB Output is correct
21 Correct 372 ms 32964 KB Output is correct
22 Correct 161 ms 27840 KB Output is correct
23 Correct 156 ms 13760 KB Output is correct
24 Correct 62 ms 12732 KB Output is correct
25 Correct 372 ms 30396 KB Output is correct
26 Correct 343 ms 33168 KB Output is correct
27 Correct 368 ms 30476 KB Output is correct
28 Correct 98 ms 12120 KB Output is correct
29 Correct 133 ms 27916 KB Output is correct
30 Correct 55 ms 11456 KB Output is correct
31 Correct 404 ms 32620 KB Output is correct
32 Correct 400 ms 32704 KB Output is correct
33 Correct 423 ms 32704 KB Output is correct
34 Correct 188 ms 28352 KB Output is correct
35 Correct 150 ms 14852 KB Output is correct
36 Correct 63 ms 13504 KB Output is correct
37 Correct 427 ms 33112 KB Output is correct
38 Correct 401 ms 33472 KB Output is correct
39 Correct 398 ms 32192 KB Output is correct
40 Correct 102 ms 11960 KB Output is correct
41 Correct 136 ms 27076 KB Output is correct
42 Correct 41 ms 12276 KB Output is correct
43 Correct 473 ms 40896 KB Output is correct
44 Correct 458 ms 41152 KB Output is correct
45 Correct 486 ms 41408 KB Output is correct
46 Correct 213 ms 36372 KB Output is correct
47 Correct 161 ms 14268 KB Output is correct
48 Correct 61 ms 12736 KB Output is correct
49 Correct 437 ms 39872 KB Output is correct
50 Correct 428 ms 41944 KB Output is correct
51 Correct 392 ms 40124 KB Output is correct
52 Correct 118 ms 12500 KB Output is correct
53 Correct 152 ms 35496 KB Output is correct