oj.uz

답안 #829063

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
829063 2023-08-18T03:10:22 Z roseanne_pcy 코알라 (APIO17_koala) C++14
47 / 100
 77 ms 344 KB 
#include "koala.h"
 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef long long ll;
 
#define f first
#define s second
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
 
const int MAXN = 105;
 
int play[MAXN];
int res[MAXN];
int tmp[MAXN];
 
void reset(int n) {
    for (int i = 0; i< n; i++) {
        play[i] = res[i] = 0;
    }
}
 
int minValue(int N, int W) {
    int n = N;
    play[0] = 1;
    playRound(play, res);
    for (int i = 0; i < n; i++) {
        if (res[i] == 0) {
            return i;
        }
    }
    reset(N);
    play[1] = 1;
    playRound(play, res);
    for (int i = 0; i < n; i++) {
        if (res[i] == 0) {
            return i;
        }
    }
    return -1;
}
 
int maxValue(int N, int W) {
    int n = N;
    for (int i = 0; i < n; i++) {
        play[i] = 1;
    }
    playRound(play, res);
    set <int> pots;
    for (int i = 0; i< n; i++) {
        if (res[i] > 0) {
            pots.insert(i);
        }
    }
 
    int times = 3;
    while(times--) {  
        reset(N);
        for (int x : pots) {
            play[x] = W/(pots.size());
        }
 
        playRound(play, res);
 
        set <int> newpots;
        for (int i = 0; i< n; i++) {
            if (res[i] > 0 && (pots.find(i) != pots.end())) {
                newpots.insert(i);
            }
        }
        pots = newpots;
    }
    return *(pots.begin());
}
 
int greaterValue(int N, int W) {
    int n = N;
    int lo = 1, hi = 14;
    while (lo < hi) {
        int mid = (lo+hi)/2;
        reset(n);
        play[0] = play[1] = mid;
        for (int i = 2; i< n; i++) {
            play[i] = 0;
        }
        playRound(play, res);
        if (res[0] != res[1]) {
            if (res[0] > res[1]) {
                return 0;
            } else {
                return 1;
            }
        } else {
            if (res[0] == 0) {
                hi = mid-1;
            } else {
                lo = mid+1;
            }
        }
    }
}
 
bool isLessThan(int x, int y, int hi_lim, int N) {
    int n = N;
    int lo = 1, hi = hi_lim;
    while (lo < hi) {
        int mid = (lo+hi)/2;
        reset(n);
        play[x] = play[y] = mid;
        playRound(play, res);
        if (res[x] != res[y]) {
            if (res[x] > res[y]) {
                return false;
            } else {
                return true;
            }
        } else {
            if (res[x] == 0) {
                hi = mid-1;
            } else {
                lo = mid+1;
            }
        }
    }
}
 
void solve(int *P, int L, int R, int N, int hi_lim) {
    if (L == R) {
        return;
    }
    // printf("called %d %d\n", L, R);
    int mid = (L+R)/2;
    solve(P, L, mid, N, hi_lim);
    solve(P, mid+1, R, N, hi_lim);
 
    int i = L, j = mid+1;
    int cur = L;
    while(i <= mid && j <= R) {
        if(isLessThan(P[i], P[j], hi_lim, N)) {
            tmp[cur++] = P[i++];
        } else {
            tmp[cur++] = P[j++];
        }
    }
    while(i <= mid) {
        tmp[cur++] = P[i++];
    }
    while(j <= R) {
        tmp[cur++] = P[j++];
    }
 
    for (int i = L; i<= R; i++) {
        P[i] = tmp[i];
    }
 
    return;
}

void solve_subtask4(int N, int W, int *P) {
    for (int i = 0; i < N; i++) {
        P[i] = -1;
    }
    for (int i = 0; i < N; i++) {
        set<int> pots;
        for (int j = 0; j < N; j++) {
            pots.insert(j);
        }

        while(true) {
            int remcnt = 0;
            for (int x : pots) {
                if (P[x] == -1) {
                    remcnt++;
                }
            }
            if (remcnt == 1) {
                break;
            }
            reset(N);
            for (int x : pots) {
                if (P[x] == -1) {
                    play[x] = W/remcnt;
                }
            }
            playRound(play, res);
            set<int> newpots;
            for (int j = 0; j< N; j++) {
                if (res[j] > 0 && pots.find(j) != pots.end()) {
                    newpots.insert(j);
                }
            }
            pots = newpots;
        }
        set<int> newpots;
        for (int j: pots) {
            if (P[j] == -1) {
                newpots.insert(j);
            }
        }
        pots = newpots;
        P[*(pots.begin())] = N-i;
        // printf("%d: %d\n", *pots.begin(), N-i);
    }
}

void allValues(int N, int W, int *P) {
    for (int i = 0; i < N; i++) {
        P[i] = i;
    }
    if (W == 2*N) {
        solve_subtask4(N, W, P);
    } else {
        int n = N;
        reset(n);
        for (int i = 0; i< n; i++) {
            play[i] = 1;
        }
        playRound(play, res);
        vector<int> lower1, lower2, lower;
        vector<int> higher1, higher2, higher;
        for(int i = 0; i< n; i++) {
            if (res[i] == 0) {
                lower.push_back(i);
            } else {
                higher.push_back(i);
            }
        }

        reset(n);
        for(int x : higher) {
            play[x] = 2;
        }
        playRound(play, res);
        for (int x : higher) {
            if (res[x] > 0) {
                higher2.push_back(x);
            } else {
                higher1.push_back(x);
            }
        }

        for(int x : lower) {
            if (res[x] > 0) {
                lower2.push_back(x);
            } else {
                lower1.push_back(x);
            }
        }

        int cur = 0;
        for (int i = 0; i < (int) lower1.size(); i++) {
            P[cur++] = lower1[i];
        }
        for (int i = 0; i < (int) lower2.size(); i++) {
            P[cur++] = lower2[i];
        }
        for (int i = 0; i < (int) higher1.size(); i++) {
            P[cur++] = higher1[i];
        }
        for (int i = 0; i < (int) higher2.size(); i++) {
            P[cur++] = higher2[i];
        }
        int n1 = lower1.size(), n2 = lower2.size();
        int N1 = higher1.size(), N2 = higher2.size();
        solve(P, 0, n1-1, N, 4);
        solve(P, n1, n1+n2-1, N, 4);
        solve(P, n1+n2, n1+n2+N1-1, N, 14);
        solve(P, n1+n2+N1, N-1, N, 14);
        // solve(P, 0, N-1, N);
        for (int i = 0; i < N; i++) {
            tmp[P[i]] = i;
        }
        for (int i = 0; i < N; i++) {
            P[i] = tmp[i] + 1;
        }
    }
}

Compilation message

koala.cpp: In function 'void allValues(int, int, int*)':
koala.cpp:272:34: warning: unused variable 'N2' [-Wunused-variable]
  272 |         int N1 = higher1.size(), N2 = higher2.size();
      |                                  ^~
koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:109:1: warning: control reaches end of non-void function [-Wreturn-type]
  109 | }
      | ^
koala.cpp: In function 'bool isLessThan(int, int, int, int)':
koala.cpp:133:1: warning: control reaches end of non-void function [-Wreturn-type]
  133 | }
      | ^

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 3 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 3 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 320 KB Output is correct
2 Correct 11 ms 208 KB Output is correct
3 Correct 11 ms 208 KB Output is correct
4 Correct 11 ms 208 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 336 KB Output is correct
2 Correct 39 ms 328 KB Output is correct
3 Correct 36 ms 340 KB Output is correct
4 Correct 35 ms 328 KB Output is correct
5 Correct 35 ms 336 KB Output is correct
6 Correct 35 ms 344 KB Output is correct
7 Correct 34 ms 328 KB Output is correct
8 Correct 38 ms 344 KB Output is correct
9 Correct 35 ms 336 KB Output is correct
10 Correct 35 ms 336 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 208 KB Output is correct
2 Correct 32 ms 208 KB Output is correct
3 Correct 32 ms 208 KB Output is correct
4 Correct 32 ms 208 KB Output is correct
5 Correct 32 ms 308 KB Output is correct
6 Correct 31 ms 328 KB Output is correct
7 Correct 31 ms 312 KB Output is correct
8 Correct 32 ms 308 KB Output is correct
9 Correct 31 ms 208 KB Output is correct
10 Correct 32 ms 208 KB Output is correct
11 Correct 31 ms 304 KB Output is correct
12 Correct 29 ms 208 KB Output is correct
13 Correct 32 ms 208 KB Output is correct
14 Correct 31 ms 208 KB Output is correct
15 Correct 33 ms 208 KB Output is correct
16 Correct 31 ms 208 KB Output is correct
17 Correct 31 ms 320 KB Output is correct
18 Correct 31 ms 208 KB Output is correct
19 Correct 31 ms 240 KB Output is correct
20 Correct 31 ms 208 KB Output is correct

Subtask #5
0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 77 ms 208 KB Output isn't correct
2 Halted 0 ms 0 KB -