oj.uz

Submission #554038

# Submission time Handle Problem Language Result Execution time Memory
554038 2022-04-27T15:19:20 Z AA_Surely Examination (JOI19_examination) C++17
2 / 100
 3000 ms 7152 KB 
#include <bits/stdc++.h>

#define FOR(i,x,n) 	for(int i=x; i<n; i++)
#define F0R(i,n) 	FOR(i,0,n)
#define ROF(i,x,n) 	for(int i=n-1; i>=x; i--)
#define R0F(i,n) 	ROF(i,0,n)

#define IOS 		ios::sync_with_stdio(false); cin.tie(0)
#define F 			first
#define S	 		second
#define pb 			push_back

#define ALL(x) 		x.begin(), x.end()
#define RALL(x) 	x.rbegin(), x.rend()

using namespace std;

typedef pair<int, int> 	PII;
typedef vector<int> 	VI;
typedef vector<PII> 	VPII;

const int N = 1e5 + 7;
const int SQ = 320;
const int TOF = 500;

struct Tutee {
    int a, b, c;

    inline bool operator < (const Tutee &other) {
        return c > other.c;
    }

} ns[N], gooni[N];

struct Query {
    int ma, mb, mc, id;

    inline bool operator < (const Query &other) {
        return mc > other.mc;
    }
} qs[N];

int n, q, sz;
VPII keep[SQ];
VI kp[SQ];
PII whole[N];
int ans[N];

void init() {
    cin >> n >> q;
    VI comp;

    F0R(i, n) {
        cin >> ns[i].a >> ns[i].b;
        ns[i].c = ns[i].a + ns[i].b;
    }

    F0R(i, q) {
        cin >> qs[i].ma >> qs[i].mb >> qs[i].mc;
        qs[i].id = i;
    }

    comp.resize(n);
    F0R(i, n) comp[i] = ns[i].a;
    sort(ALL(comp));
    comp.resize(unique(ALL(comp)) - comp.begin());
    F0R(i, n) ns[i].a = lower_bound(ALL(comp), ns[i].a) - comp.begin();
    F0R(i, q) qs[i].ma = lower_bound(ALL(comp), qs[i].ma) - comp.begin();

    return;
}

inline void rebuild() {
    int pt = 0;
    F0R(i, SQ) {
        for(const PII &on : keep[i]) whole[pt++] = on;
        keep[i].clear();
        kp[i].clear();
    }

    F0R(i, sz) whole[pt++] = PII(gooni[i].a, gooni[i].b);
    sz = 0;

    sort(whole, whole + pt);
    
    F0R(i, pt) {
        keep[i / SQ].pb(whole[i]);
        kp[i / SQ].pb(whole[i].S);
    }

    F0R(i, SQ) sort(ALL(kp[i]));

    return;
}

inline int getKeep(int p) {
    /*int dasti = SQ - 1;
    F0R(i, SQ) if (!keep[i].empty() && keep[i][0].F >= qs[p].ma) {
        dasti = i - 1;
        break;
    }
    dasti = max(dasti, 0);*/
    
    int ret = 0;
    F0R(dasti, SQ) {
        for(const PII &on : keep[dasti]) 
            ret += (on.F >= qs[p].ma && on.S >= qs[p].mb);
    }

    //FOR(i, dasti + 1, SQ) ret += kp[i].size() - (lower_bound(ALL(kp[i]), qs[p].mb) - kp[i].begin());
    return ret;
}

inline int getGooni(int p) {
    int ret = 0;
    F0R(i, sz)
        ret += (gooni[i].a >= qs[p].ma && gooni[i].b >= qs[p].mb);
    return ret;
}

int main() {
    IOS;
    
    init();
    sort(qs, qs + q);
    sort(ns, ns + n);
    
    int ptr = 0;
    F0R(i, q) {
        while(ptr < n && ns[ptr].c >= qs[i].mc) gooni[sz++] = ns[ptr++];
        if (sz >= TOF) rebuild();

        ans[ qs[i].id ] = getKeep(i) + getGooni(i);
    }

    F0R(i, q) cout << ans[i] << '\n';
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 10 ms 536 KB Output is correct
8 Correct 9 ms 468 KB Output is correct
9 Correct 9 ms 524 KB Output is correct
10 Correct 10 ms 468 KB Output is correct
11 Correct 12 ms 468 KB Output is correct
12 Correct 8 ms 468 KB Output is correct
13 Correct 12 ms 576 KB Output is correct
14 Correct 16 ms 468 KB Output is correct
15 Correct 12 ms 596 KB Output is correct
16 Correct 13 ms 572 KB Output is correct
17 Correct 8 ms 524 KB Output is correct
18 Correct 4 ms 468 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3057 ms 7152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3057 ms 7152 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 10 ms 536 KB Output is correct
8 Correct 9 ms 468 KB Output is correct
9 Correct 9 ms 524 KB Output is correct
10 Correct 10 ms 468 KB Output is correct
11 Correct 12 ms 468 KB Output is correct
12 Correct 8 ms 468 KB Output is correct
13 Correct 12 ms 576 KB Output is correct
14 Correct 16 ms 468 KB Output is correct
15 Correct 12 ms 596 KB Output is correct
16 Correct 13 ms 572 KB Output is correct
17 Correct 8 ms 524 KB Output is correct
18 Correct 4 ms 468 KB Output is correct
19 Execution timed out 3057 ms 7152 KB Time limit exceeded
20 Halted 0 ms 0 KB -