oj.uz

Submission #807607

# Submission time Handle Problem Language Result Execution time Memory
807607 2023-08-04T20:24:28 Z SorahISA Trampoline (info1cup20_trampoline) C++17
100 / 100
 591 ms 56492 KB 
#ifndef SorahISA
#define SorahISA
#include SorahISA __FILE__ SorahISA

const int lgmx = 18;

void solve() {
    int R, C, N; cin >> R >> C >> N;
    
    vector<pii> green_vec(N);
    map<int, set<pii>> green;
    for (int i = 0, r, c; i < N; ++i) cin >> r >> c, green_vec[i] = {r, c}, green[r].ee(c, i);
    
    vector anc(lgmx, vector<int>(N+1, N));
    
    for (const auto &[r, st_c] : green) {
        if (!green.count(r+1)) continue;
        const set<pii> &nxt = green[r+1];
        for (const auto &[c, id] : st_c) {
            const auto it = nxt.lower_bound({c, 0});
            if (it == end(nxt)) break;
            anc[0][id] = it->second;
        }
    }
    
    for (int lay = 1; lay < lgmx; ++lay) {
        for (int i = 0; i < N; ++i) anc[lay][i] = anc[lay-1][anc[lay-1][i]];
    }
    
    int T; cin >> T;
    for (int q = 1; q <= T; ++q) {
        int sx, sy, ex, ey; cin >> sx >> sy >> ex >> ey;
        if (sx > ex or (sx == ex and sy > ey)) {cout << "No" << "\n"; continue;}
        if (sx == ex) {cout << "Yes" << "\n"; continue;}
        
        if (!green.count(sx) or green[sx].lower_bound({sy, 0}) == end(green[sx])) {cout << "No" << "\n"; continue;}
        
        int dif = ex - sx - 1, now = green[sx].lower_bound({sy, 0})->second;
        for (int lay = lgmx-1; lay >= 0; --lay) {
            if (dif >> lay & 1) now = anc[lay][now];
        }
        
        if (now < N and green_vec[now].second <= ey) cout << "Yes" << "\n";
        else cout << "No" << "\n";
    }
}

int32_t main() {
    fastIO();
    
    int t = 1; // cin >> t;
    for (int _ = 1; _ <= t; ++_) {
        solve();
    }
    
    return 0;
}

#else

#ifdef local
#define _GLIBCXX_DEBUG 1
#endif
#pragma GCC optimize("Ofast", "unroll-loops")
#include <bits/stdc++.h>
using namespace std;

// #define int int64_t
// #define double __float80
using pii = pair<int, int>;
template <typename T> using Prior = std::priority_queue<T>;
template <typename T> using prior = std::priority_queue<T, vector<T>, greater<T>>;

// #define X first
// #define Y second
#define eb emplace_back
#define ef emplace_front
#define ee emplace
#define pb pop_back
#define pf pop_front
#define ALL(x) begin(x), end(x)
#define RALL(x) rbegin(x), rend(x)
#define SZ(x) ((int)(x).size())

#ifdef local
#define fastIO() void()
#define debug(...) \
    fprintf(stderr, "%sAt [%s], line %d: (%s) = ", "\u001b[33m", __FUNCTION__, __LINE__, #__VA_ARGS__), \
    _do(__VA_ARGS__), fprintf(stderr, "%s", "\u001b[0m")
template <typename T> void _do(T &&_t) {cerr << _t << "\n";}
template <typename T, typename ...U> void _do(T &&_t, U &&..._u) {cerr << _t << ", ", _do(_u...);}
#else
#define fastIO() ios_base::sync_with_stdio(0), cin.tie(0)
#define debug(...) void()
#endif

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

template <typename T, typename U> bool chmin(T &lhs, U rhs) {return lhs > rhs ? lhs = rhs, 1 : 0;}
template <typename T, typename U> bool chmax(T &lhs, U rhs) {return lhs < rhs ? lhs = rhs, 1 : 0;}

#endif

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1364 KB 200 token(s): yes count is 21, no count is 179
2 Correct 4 ms 1620 KB 200 token(s): yes count is 70, no count is 130
3 Correct 3 ms 1236 KB 197 token(s): yes count is 25, no count is 172

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 26400 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 137 ms 26424 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 127 ms 26236 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 120 ms 26424 KB 4000 token(s): yes count is 1991, no count is 2009

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 284 ms 26132 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 292 ms 26184 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 281 ms 26208 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 299 ms 26328 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 299 ms 26348 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 416 ms 32452 KB 200000 token(s): yes count is 97163, no count is 102837

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 980 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 5 ms 980 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 6 ms 1364 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 5 ms 976 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 6 ms 1108 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 5 ms 980 KB 5000 token(s): yes count is 3390, no count is 1610

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 533 ms 41232 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 458 ms 39716 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 305 ms 37892 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 591 ms 56492 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 440 ms 44500 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 309 ms 37816 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 308 ms 37812 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 296 ms 37840 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 532 ms 43924 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 502 ms 44144 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 549 ms 50352 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 314 ms 37852 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 291 ms 37828 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 333 ms 38132 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 274 ms 37816 KB 200000 token(s): yes count is 129674, no count is 70326