oj.uz

Submission #134513

# Submission time Handle Problem Language Result Execution time Memory
134513 2019-07-23T00:41:02 Z tri The Big Prize (IOI17_prize) C++14
100 / 100
 53 ms 504 KB 
#include <bits/stdc++.h>
#include "prize.h"

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;

#define pb push_back
#define f first
#define s second

namespace debug {
    const int DEBUG = true;

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x);

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x);

    template<class T>
    void pr(const vector<T> &x);

    template<class T>
    void pr(const set<T> &x);

    template<class T1, class T2>
    void pr(const map<T1, T2> &x);

    template<class T>
    void pr(const T &x) { if (DEBUG) cout << x; }

    template<class T, class... Ts>
    void pr(const T &first, const Ts &... rest) { pr(first), pr(rest...); }

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x) { pr("{", x.f, ", ", x.s, "}"); }

    template<class T>
    void prIn(const T &x) {
        pr("{");
        bool fst = 1;
        for (auto &a : x) {
            pr(fst ? "" : ", ", a), fst = 0;
        }
        pr("}");
    }

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x) { prIn(x); }

    template<class T>
    void pr(const vector<T> &x) { prIn(x); }

    template<class T>
    void pr(const set<T> &x) { prIn(x); }

    template<class T1, class T2>
    void pr(const map<T1, T2> &x) { prIn(x); }

    void ps() { pr("\n"), cout << flush; }

    template<class Arg, class... Args>
    void ps(const Arg &first, const Args &... rest) {
        pr(first, " ");
        ps(rest...);
    }
}
using namespace debug;


int callCnt = 0;

int gGrt(int i) {
    callCnt++;
//    ps("callCnt", callCnt);
    vi ret = ask(i);
    return ret[0] + ret[1];
}

int maxG, ans = -1;

void srch(int l, int r, int cnt, int lS, int rS) {
    if (ans != -1) {
        return;
    }
    if (l > r) {
        return;
    }

    if (cnt == 0) {
        return;
    }
    assert(cnt >= 0);
    if(cnt < 0){
        exit(0);
    }

    assert(r - l + 1 >= cnt);
    assert(l <= r);

    if (r - l + 1 == cnt) {
        for (int i = l; i <= r; i++) {
            if (gGrt(i) == 0) {
                ans = i;
                return;
            }
        }
        return;
    }

    int oMid = (l + r) / 2;
    int mid = oMid;
    vi ret = ask(mid);

    while (ret[0] + ret[1] != maxG) {
        if (ret[0] + ret[1] == 0) {
            ans = mid;
            return;
        }

        mid++;
        if (mid > r) {
            int found = mid - oMid;
            srch(l, oMid - 1, cnt - found, lS, rS + found);
            if(ans != -1){
                return;
            }
        }
        ret = ask(mid);
    }

    int found = mid - oMid;
    srch(l, oMid - 1, ret[0] - found - lS, lS, ret[1] + found);
    srch(mid + 1, r, ret[1] - rS, ret[0], rS);
}

int find_best(int N) {
    if (N < 4000) {
        for (int i = 0; i < N; i++) {
            if (gGrt(i) == 0) {
                return i;
            }
        }
    }

    int found = 0;
    maxG = 0;

    for(int rep = 0; rep < 100; rep++){
        int qInd = rand() % N;
        maxG = max(maxG, gGrt(qInd));
    }

    srch(0, N - 1, maxG - found, found, 0);
    return ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 312 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 308 KB Output is correct
4 Correct 2 ms 396 KB Output is correct
5 Correct 3 ms 248 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 3 ms 248 KB Output is correct
8 Correct 3 ms 248 KB Output is correct
9 Correct 2 ms 308 KB Output is correct
10 Correct 3 ms 248 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 296 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 424 KB Output is correct
4 Correct 3 ms 248 KB Output is correct
5 Correct 3 ms 248 KB Output is correct
6 Correct 3 ms 308 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 3 ms 392 KB Output is correct
9 Correct 3 ms 248 KB Output is correct
10 Correct 3 ms 248 KB Output is correct
11 Correct 5 ms 248 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 8 ms 248 KB Output is correct
14 Correct 5 ms 248 KB Output is correct
15 Correct 5 ms 308 KB Output is correct
16 Correct 28 ms 424 KB Output is correct
17 Correct 3 ms 248 KB Output is correct
18 Correct 41 ms 376 KB Output is correct
19 Correct 3 ms 248 KB Output is correct
20 Correct 13 ms 248 KB Output is correct
21 Correct 17 ms 248 KB Output is correct
22 Correct 5 ms 248 KB Output is correct
23 Correct 3 ms 312 KB Output is correct
24 Correct 3 ms 248 KB Output is correct
25 Correct 22 ms 248 KB Output is correct
26 Correct 23 ms 248 KB Output is correct
27 Correct 3 ms 304 KB Output is correct
28 Correct 41 ms 304 KB Output is correct
29 Correct 34 ms 248 KB Output is correct
30 Correct 53 ms 248 KB Output is correct
31 Correct 3 ms 416 KB Output is correct
32 Correct 6 ms 308 KB Output is correct
33 Correct 2 ms 248 KB Output is correct
34 Correct 15 ms 248 KB Output is correct
35 Correct 3 ms 304 KB Output is correct
36 Correct 12 ms 248 KB Output is correct
37 Correct 4 ms 248 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 22 ms 392 KB Output is correct
40 Correct 22 ms 388 KB Output is correct
41 Correct 26 ms 376 KB Output is correct
42 Correct 15 ms 308 KB Output is correct
43 Correct 18 ms 248 KB Output is correct
44 Correct 23 ms 248 KB Output is correct
45 Correct 17 ms 248 KB Output is correct
46 Correct 3 ms 396 KB Output is correct
47 Correct 22 ms 376 KB Output is correct
48 Correct 34 ms 312 KB Output is correct
49 Correct 7 ms 388 KB Output is correct
50 Correct 44 ms 248 KB Output is correct
51 Correct 11 ms 388 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 6 ms 308 KB Output is correct
54 Correct 19 ms 252 KB Output is correct
55 Correct 2 ms 392 KB Output is correct
56 Correct 25 ms 388 KB Output is correct
57 Correct 32 ms 376 KB Output is correct
58 Correct 32 ms 252 KB Output is correct
59 Correct 25 ms 316 KB Output is correct
60 Correct 30 ms 248 KB Output is correct
61 Correct 3 ms 376 KB Output is correct
62 Correct 3 ms 248 KB Output is correct
63 Correct 5 ms 248 KB Output is correct
64 Correct 3 ms 400 KB Output is correct
65 Correct 5 ms 312 KB Output is correct
66 Correct 7 ms 376 KB Output is correct
67 Correct 7 ms 248 KB Output is correct
68 Correct 4 ms 308 KB Output is correct
69 Correct 4 ms 376 KB Output is correct
70 Correct 6 ms 248 KB Output is correct
71 Correct 51 ms 376 KB Output is correct
72 Correct 7 ms 248 KB Output is correct
73 Correct 50 ms 248 KB Output is correct
74 Correct 35 ms 248 KB Output is correct
75 Correct 4 ms 248 KB Output is correct
76 Correct 23 ms 396 KB Output is correct
77 Correct 29 ms 248 KB Output is correct
78 Correct 8 ms 248 KB Output is correct
79 Correct 19 ms 376 KB Output is correct
80 Correct 42 ms 248 KB Output is correct
81 Correct 50 ms 248 KB Output is correct
82 Correct 35 ms 248 KB Output is correct
83 Correct 3 ms 376 KB Output is correct
84 Correct 40 ms 376 KB Output is correct
85 Correct 25 ms 376 KB Output is correct
86 Correct 15 ms 312 KB Output is correct
87 Correct 4 ms 376 KB Output is correct
88 Correct 18 ms 376 KB Output is correct
89 Correct 18 ms 308 KB Output is correct
90 Correct 5 ms 248 KB Output is correct
91 Correct 15 ms 248 KB Output is correct
92 Correct 9 ms 376 KB Output is correct
93 Correct 7 ms 248 KB Output is correct
94 Correct 8 ms 248 KB Output is correct
95 Correct 6 ms 248 KB Output is correct
96 Correct 8 ms 248 KB Output is correct
97 Correct 3 ms 248 KB Output is correct