Submission #853368

#	Time	Username	Problem	Language	Result	Execution time	Memory
853368		abcvuitunggio	Packing Biscuits (IOI20_biscuits)	C++17	0 / 100	1 ms	604 KiB

biscuits

#include "biscuits.h"
#define int long long
int dp[60][60];
std::vector <int> v;
int f(int i, int j){
    if (i<0)
        return 1;
    if (dp[i][j]!=-1)
        return dp[i][j];
    dp[i][j]=f(i-1,(i&&v[i-1]%(1<<i)<v[j]%(1<<i)?i-1:j));
    if ((v[j]>>i)&1)
        dp[i][j]+=f(i-1,i-1);
    return dp[i][j];
}
int count_tastiness(int x, std::vector <int> a){
    v.clear();
    for (int i=0;i<a.size();i++)
        v.push_back((v.empty()?0:v.back())+(a[i]<<i));
    for (auto &i:v)
        i/=x;
    for (int i=0;i<a.size();i++)
        for (int j=0;j<a.size();j++)
            dp[i][j]=-1;
    return f(a.size()-1,a.size()-1);
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:17:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for (int i=0;i<a.size();i++)
      |                  ~^~~~~~~~~
biscuits.cpp:21:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i=0;i<a.size();i++)
      |                  ~^~~~~~~~~
biscuits.cpp:22:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for (int j=0;j<a.size();j++)
      |                      ~^~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23