Submission #120952

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
120952	2019-06-25T20:03:00 Z	Rahul	Koala Game (APIO17_koala)	C++17	Compilation error	0 ms	0 KB

koala

#include "koala.h"
#include <bits/stdc++.h>
using namespace std;
#define SZ(v) int((v).size())
#define ALL(vec) (vec).begin(),(vec).end()

int B[500], R[500];

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);
    }
}

int minValue(int n, int w) {
  for (int i = 0; i < 100; ++i) {
    B[i] = i < 51;
  }
  playRound(B, R);
  int m = -1;
  for (int i = 0; i < 51; ++i) {
    if (R[i] == 0) {
      m = i;
    } // else assert (R[i] == 2);
  }
  for (int i = 0; i < 100; ++i) {
    B[i] = i >= 50;
  }
  B[m] = 1;
  if (m == 50) B[49] = 1;
  playRound(B, R);
  int res = -1;
  for (int i = 50; i < 100; ++i) {
    if (R[i] == 0) {
      res = i;
    } // else assert (R[i] == 2);
  }
  if (res != -1) return res;
  if (m == 50) return 49;
  else return m;
}
int maxValue(int n, int w) {
  return 0;
}
int greaterValue(int n, int w) {
  return 0;
}
int allValues(int n, int w, int *P) {
  return 0;
}

Compilation message

koala.cpp: In function 'int allValues(int, int, int*)':
koala.cpp:153:5: error: ambiguating new declaration of 'int allValues(int, int, int*)'
 int allValues(int n, int w, int *P) {
     ^~~~~~~~~
In file included from koala.cpp:1:0:
koala.h:9:6: note: old declaration 'void allValues(int, int, int*)'
 void allValues(int N, int W, int *P);
      ^~~~~~~~~
koala.cpp: In function 'void grader()':
koala.cpp:113:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&F,&G);
     ~~~~~^~~~~~~~~~~~~~~
koala.cpp: In function 'void runGame(int)':
koala.cpp:86:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&N,&W);
     ~~~~~^~~~~~~~~~~~~~~
koala.cpp:88:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&P[i]);
         ~~~~~^~~~~~~~~~~~