oj.uz

Submission #725276

# Submission time Handle Problem Language Result Execution time Memory
725276 2023-04-17T06:25:29 Z Baytoro Pairs (IOI07_pairs) C++17
70 / 100
 4000 ms 4564 KB 
#include <bits/stdc++.h>
using namespace std;
#define ios ios::sync_with_stdio(false); cin.tie(NULL);cout.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define endl '\n'
#define ll long long
#define int long long
void fopn(string name){
	freopen((name+".in").c_str(),"r",stdin);
	freopen((name+".out").c_str(),"w",stdout);
}
const ll INF=1e18,mod=1e9+9,N=1e5+5;
template<class T, int... Ns> struct BIT {
    T val = 0;
    void upd(T v) { val += v; }
    T query() { return val; }  
};
template<class T, int N, int... Ns> struct BIT<T, N, Ns...> {
    BIT<T, Ns...> bit[N+1];
    template<typename... Args> void upd(int pos, Args... args) {
        for (; pos <= N; pos += pos&-pos) bit[pos].upd(args...);
    }
    template<typename... Args> T sum(int pos, Args... args) {
        T res = 0; for (; pos > 0; pos -= pos&-pos) res += bit[pos].query(args...);
        return res;
    }
    template<typename... Args> T query(int l, int r, Args... args) {
        return sum(r, args...) - sum(l-1, args...);
    }
};
struct triple{
	int x,y,z;
};
void solve(){
	int b,n,d,m;
	cin>>b>>n>>d>>m;
	if(b==1){
		vector<int> a(n);
		for(int i=0;i<n;i++) cin>>a[i];
		sort(all(a));
		int ans=0;
		for(int i=0;i<n;i++){
			int j=upper_bound(all(a),a[i]+d)-a.begin();
			ans+=j-i-1;
		}
		cout<<ans<<endl;
	}
	else if(b==2){
		vector<pair<int,int>> a(n);
		for(int i=0;i<n;i++){
			int x,y;cin>>x>>y;
			a[i]={x+y,x-y};
		}
		sort(all(a));
		int ans=0;
		BIT<int,150005> bit;
		
		int l=0,r=-1;
		for(int i=0;i<n;i++){
			while(r+1<n && a[r+1].fr-a[i].fr<=d)
				bit.upd(a[++r].sc+m+1,1);
			while(l<n && a[i].fr-a[l].fr>d)
				bit.upd(a[l++].sc+m+1,-1);
			ans+=bit.query(max(1ll,a[i].sc+m+1-d),min(2*m+1,a[i].sc+m+1+d))-1;
			
		}
		cout<<ans/2<<endl;
	}
	else{
		vector<triple> a(n);
		for(int i=0;i<n;i++){
			cin>>a[i].x>>a[i].y>>a[i].z;
		}
		int ans=0;
		for(int i=0;i<n;i++){
			for(int j=i+1;j<n;j++){
				if(abs(a[i].x-a[j].x)+abs(a[i].y-a[j].y)+abs(a[i].z-a[j].z)<=d) ans++;
			}
		}
		cout<<ans<<endl;
	}
}
main(){
	//fopn("team");
	ios;
	int T=1;
	//cin>>T;
	for(int i=1;i<=T;i++){
		//cout<<"Case #"<<i<<": ";
		solve();
	}
}

Compilation message

pairs.cpp:87:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   87 | main(){
      | ^~~~
pairs.cpp: In function 'void fopn(std::string)':
pairs.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pairs.cpp:14:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 2388 KB Output is correct
2 Correct 14 ms 2388 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2416 KB Output is correct
2 Correct 18 ms 2388 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2388 KB Output is correct
2 Correct 20 ms 2400 KB Output is correct
3 Correct 18 ms 2388 KB Output is correct

Subtask #6
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1492 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct

Subtask #7
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 3540 KB Output is correct
2 Correct 25 ms 3540 KB Output is correct

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 3744 KB Output is correct
2 Correct 29 ms 3824 KB Output is correct
3 Correct 28 ms 3800 KB Output is correct
4 Correct 28 ms 3820 KB Output is correct

Subtask #9
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 4052 KB Output is correct
2 Correct 36 ms 4180 KB Output is correct
3 Correct 34 ms 4072 KB Output is correct
4 Correct 31 ms 4076 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1528 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4018 ms 4344 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #12
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4038 ms 4564 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4042 ms 4564 KB Time limit exceeded
2 Halted 0 ms 0 KB -