oj.uz

Submission #1054105

# Submission time Handle Problem Language Result Execution time Memory
1054105 2024-08-12T06:30:37 Z 정민찬(#11058) Koala Game (APIO17_koala) C++14
19 / 100
 8 ms 456 KB 
#include "koala.h"
#include <bits/stdc++.h>

using namespace std;

void playRound(int *B, int *R);

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

int maxValue(int N, int W) {
    vector<int> B(N, 0), R(N, 0);
    vector<int> cand(N);
    iota(cand.begin(), cand.end(), 0);
    while (true) {
        int cnt = min(13, W / (int)cand.size());
        fill(B.begin(), B.end(), 0);
        for (auto &x : cand) {
            B[x] = cnt;
        }
        playRound(&B[0], &R[0]);
        vector<int> nxt;
        for (int i=0; i<N; i++) {
            if (B[i] && R[i]) {
                nxt.push_back(i);
            }
        }
        cand = nxt;
        if (cand.size() == 1) return cand[0];
    }
}

int greaterValue(int N, int W) {
    vector<int> B(N, 0), R(N, 0);
    assert(0);
    int lo = 1, hi = 14;
    while (lo <= hi) {
        int mid = lo + hi >> 1;
        B[0] = mid; B[1] = mid;
        playRound(&B[0], &R[0]);
        if (R[0] > mid && R[1] <= mid) return 1;
        if (R[1] > mid && R[0] <= mid) return 0;
        if (R[0] <= mid && R[1] <= mid) hi = mid - 1;
        else lo = mid + 1;
    }
    
}

void allValues(int N, int W, int *P) {
    if (W == 2*N) {
        // TODO: Implement Subtask 4 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    } else {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    }
}
/*
static int N, W;
static int P[105];

static int maxQueries = 3200;
static int numQueries;

static void runGame(int F);
static void grader();

int main() {
    grader();
    return 0;
}

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];
    }
}

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:46:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   46 |         int mid = lo + hi >> 1;
      |                   ~~~^~~~
koala.cpp: In function 'int minValue(int, int)':
koala.cpp:9:23: warning: control reaches end of non-void function [-Wreturn-type]
    9 |     vector<int> B(N, 0), R(N, 0);
      |                       ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 2 ms 344 KB Output is correct
4 Correct 2 ms 452 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 8 ms 456 KB Output is correct
3 Correct 8 ms 344 KB Output is correct
4 Correct 8 ms 344 KB Output is correct

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 344 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 53.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -