oj.uz

Submission #567570

# Submission time Handle Problem Language Result Execution time Memory
567570 2022-05-23T17:40:09 Z hoanghq2004 Koala Game (APIO17_koala) C++14
61 / 100
 47 ms 364 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "koala.h"

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
////
//static int N, W;
//static int P[105];
//
//static int maxQueries = 3200;
//static int numQueries;
//
//static void runGame(int F);
//static void grader();
//
//void playRound(int *B, int *R) {
//    int i, j;
//
//    int S = 0;
//    for (i=0;i<N;++i) {
//        if ( !(B[i] >= 0 && B[i] <= W) ) {
//            printf("Invalid query.\n");
//            exit(0);
//        }
//        S += B[i];
//    }
//    if (S > W) {
//        printf("Invalid query.\n");
//        exit(0);
//    }
//
//    numQueries++;
//    if (numQueries > maxQueries) {
//        printf("Too many queries.\n");
//        exit(0);
//    }
//
//    int cache[2][205];
//    int num[2][205];
//    char taken[105][205];
//
//    for (i=0;i<205;++i) {
//        cache[1][i] = 0;
//        num[1][i] = 0;
//    }
//
//    for (i=0;i<N;++i) {
//        int v = B[i]+1;
//        int ii = i&1;
//        int o = ii^1;
//        for (j=0;j<=W;++j) {
//            cache[ii][j] = cache[o][j];
//            num[ii][j] = num[o][j];
//            taken[i][j] = 0;
//        }
//        for (j=W;j>=v;--j) {
//            int h = cache[o][j-v] + P[i];
//            int hn = num[o][j-v] + 1;
//            if (h > cache[ii][j] || (h == cache[ii][j] && hn > num[ii][j])) {
//                cache[ii][j] = h;
//                num[ii][j] = hn;
//                taken[i][j] = 1;
//            } else {
//                taken[i][j] = 0;
//            }
//        }
//    }
//
//    int cur = W;
//    for (i=N-1;i>=0;--i) {
//        R[i] = taken[i][cur] ? (B[i] + 1) : 0;
//        cur -= R[i];
//    }
//}

int minValue(int N, int W) {
    int B[105];
    int R[105];
    memset(B, 0, sizeof(B));
    memset(R, 0, sizeof(R));
    B[0] = 1;
    playRound(B, R);
    for (int i = 0; i < N; ++i)
        if (R[i] == 0) return i;
    return 0;
}

int maxValue(int N, int W) {
    vector <int> cands;
    for (int i = 0; i < N; ++i) cands.push_back(i);
    while (cands.size() > 1) {
        int B[105];
        int R[105];
        memset(B, 0, sizeof(B));
        memset(R, 0, sizeof(R));
        for (auto x: cands) B[x] = W / cands.size();
        playRound(B, R);
        vector <int> ncands;
        int maxi = *max_element(R, R + N);
        for (auto x: cands)
            if (R[x] == maxi) ncands.push_back(x);
        swap(cands, ncands);
    }
    return cands[0];
}

int greaterValue(int N, int W) {
    int lo = 0, hi = W / 6;
    while (lo <= hi) {
        int mid = lo + hi >> 1;
        int B[105];
        int R[105];
        memset(B, 0, sizeof(B));
        memset(R, 0, sizeof(R));
        B[0] = B[1] = mid;
        playRound(B, R);
        int ok0 = (R[0] > mid);
        int ok1 = (R[1] > mid);
        if (ok0 ^ ok1) return (ok0 ? 0 : 1);
        if (!ok0) hi = mid - 1;
        else lo = mid + 1;
    }
}

void allValues(int N, int W, int *P) {
    if (W != 2 * N) {
        int p[N];
        memset(p, 0, sizeof(p));
        for (int i = 0; i < N; ++i) p[i] = i;
        sort(p, p + N, [&](int u, int v) {
            int lo = 0, hi = W / 6;
            while (lo <= hi) {
                int mid = lo + hi >> 1;
                int B[105];
                int R[105];
                memset(B, 0, sizeof(B));
                memset(R, 0, sizeof(R));
                B[u] = B[v] = mid;
                playRound(B, R);
                int ok0 = (R[u] > mid);
                int ok1 = (R[v] > mid);
                if (ok0 ^ ok1) return (ok0 ? 0 : 1);
                if (!ok0) hi = mid - 1;
                else lo = mid + 1;
            }
        });
        for (int i = 0; i < N; ++i) P[p[i]] = i + 1;
    } else {
        int p[N];
        memset(p, 0, sizeof(p));
        for (int i = 0; i < N; ++i) p[i] = i;
        sort(p, p + N, [&](int u, int v) {
            int B[105];
            int R[105];
            memset(B, 0, sizeof(B));
            memset(R, 0, sizeof(R));
            B[u] = B[v] = N;
            playRound(B, R);
            int ok0 = (R[u] > N);
            int ok1 = (R[v] > N);
            return (ok0 ? 0 : 1);
        });
        for (int i = 0; i < N; ++i) P[p[i]] = i + 1;
    }
}
//
//int main() {
//    grader();
//    return 0;
//}
//
//
//static void runGame(int F) {
//    int i;
//
//    scanf("%d %d",&N,&W);
//    for (i=0;i<N;++i) {
//        scanf("%d",&P[i]);
//    }
//
//    numQueries = 0;
//    if (F == 1) {
//        printf("%d\n", minValue(N, W));
//    } else if (F == 2) {
//        printf("%d\n", maxValue(N, W));
//    } else if (F == 3) {
//        printf("%d\n", greaterValue(N, W));
//    } else if (F == 4) {
//        int userP[105];
//        allValues(N, W, userP);
//        for (i=0;i<N;i++) {
//            printf("%d ",userP[i]);
//        }
//        printf("\n");
//    }
//    printf("Made %d calls to playRound.\n", numQueries);
//}
//
//static void grader() {
//    int i;
//
//    int F, G;
//    scanf("%d %d",&F,&G);
//
//    for (i=0;i<G;i++) {
//        runGame(F);
//    }
//}

Compilation message

koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:117:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  117 |         int mid = lo + hi >> 1;
      |                   ~~~^~~~
koala.cpp: In lambda function:
koala.cpp:140:30: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  140 |                 int mid = lo + hi >> 1;
      |                           ~~~^~~~
koala.cpp: In lambda function:
koala.cpp:167:17: warning: unused variable 'ok1' [-Wunused-variable]
  167 |             int ok1 = (R[v] > N);
      |                 ^~~
koala.cpp: In function 'int greaterValue(int, int)':
koala.cpp:130:1: warning: control reaches end of non-void function [-Wreturn-type]
  130 | }
      | ^
koala.cpp: In lambda function:
koala.cpp:153:9: warning: control reaches end of non-void function [-Wreturn-type]
  153 |         });
      |         ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 4 ms 208 KB Output is correct
3 Correct 4 ms 208 KB Output is correct
4 Correct 4 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 208 KB Output is correct
2 Correct 13 ms 320 KB Output is correct
3 Correct 13 ms 208 KB Output is correct
4 Correct 12 ms 208 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 320 KB Output is correct
2 Correct 47 ms 328 KB Output is correct
3 Correct 45 ms 320 KB Output is correct
4 Correct 40 ms 336 KB Output is correct
5 Correct 41 ms 320 KB Output is correct
6 Correct 46 ms 332 KB Output is correct
7 Correct 42 ms 328 KB Output is correct
8 Correct 43 ms 328 KB Output is correct
9 Correct 44 ms 320 KB Output is correct
10 Correct 42 ms 332 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 208 KB Output is correct
2 Incorrect 38 ms 296 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
24.0 / 53.0

# Verdict Execution time Memory Grader output
1 Partially correct 28 ms 208 KB Output is partially correct
2 Partially correct 29 ms 208 KB Output is partially correct
3 Partially correct 27 ms 304 KB Output is partially correct
4 Partially correct 26 ms 208 KB Output is partially correct
5 Partially correct 29 ms 208 KB Output is partially correct
6 Partially correct 27 ms 208 KB Output is partially correct
7 Partially correct 32 ms 208 KB Output is partially correct
8 Partially correct 30 ms 312 KB Output is partially correct
9 Partially correct 34 ms 208 KB Output is partially correct
10 Partially correct 24 ms 312 KB Output is partially correct
11 Partially correct 26 ms 208 KB Output is partially correct
12 Partially correct 17 ms 312 KB Output is partially correct
13 Partially correct 25 ms 312 KB Output is partially correct
14 Partially correct 25 ms 312 KB Output is partially correct
15 Partially correct 27 ms 308 KB Output is partially correct
16 Partially correct 29 ms 296 KB Output is partially correct
17 Partially correct 33 ms 296 KB Output is partially correct
18 Partially correct 29 ms 208 KB Output is partially correct
19 Partially correct 27 ms 208 KB Output is partially correct
20 Partially correct 25 ms 208 KB Output is partially correct
21 Partially correct 24 ms 312 KB Output is partially correct
22 Partially correct 28 ms 304 KB Output is partially correct
23 Partially correct 23 ms 316 KB Output is partially correct
24 Partially correct 35 ms 296 KB Output is partially correct
25 Partially correct 25 ms 208 KB Output is partially correct
26 Partially correct 27 ms 316 KB Output is partially correct
27 Partially correct 25 ms 292 KB Output is partially correct
28 Partially correct 29 ms 316 KB Output is partially correct
29 Partially correct 27 ms 312 KB Output is partially correct
30 Partially correct 24 ms 208 KB Output is partially correct
31 Partially correct 24 ms 208 KB Output is partially correct
32 Partially correct 30 ms 304 KB Output is partially correct
33 Partially correct 29 ms 208 KB Output is partially correct
34 Partially correct 22 ms 312 KB Output is partially correct
35 Partially correct 26 ms 364 KB Output is partially correct
36 Partially correct 24 ms 208 KB Output is partially correct
37 Partially correct 27 ms 328 KB Output is partially correct
38 Partially correct 26 ms 208 KB Output is partially correct
39 Partially correct 26 ms 208 KB Output is partially correct
40 Partially correct 25 ms 208 KB Output is partially correct