Submission #672782

#	Time	Username	Problem	Language	Result	Execution time	Memory
672782		tbzard	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1100 ms	84992 KiB

biscuits

#include <bits/stdc++.h>
using namespace std;
long long count_tastiness(long long x, vector<long long> a){
    long double b = 1, sum = 0;
    set<long double> ans;
    ans.insert(0);
    for(int i=0;i<a.size();i++){
        sum += b*a[i];
        while(1){
            vector<long double> add;
            set<long double>::iterator it = ans.upper_bound(sum/x);
            it--;
            for(;;it--){
                long double val = *it+(1ll<<i);
                if(sum/x >= val){
                    if(ans.find(val) != ans.end()) break;
                    add.push_back(val);
                }
                if(it == ans.begin()) break;
            }
            for(int j=0;j<add.size();j++){
                ans.insert(add[j]);
            }
            if(add.empty()) break;
        }
        b *= 2;
    }
    return (long long)ans.size();
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:7:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i=0;i<a.size();i++){
      |                 ~^~~~~~~~~
biscuits.cpp:21:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long double>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |             for(int j=0;j<add.size();j++){
      |                         ~^~~~~~~~~~~

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