Submission #405855

#	Time	Username	Problem	Language	Result	Execution time	Memory
405855		ly20	Packing Biscuits (IOI20_biscuits)	C++17	0 / 100	3 ms	332 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 60;

long long mc[MAXN];

bool inf(long long a, long long b) {
    if(log10(a) + log10(b) > 18) return true;
}
long long count_tastiness(long long x, vector<long long> a) {
	int tot = 0;
	for(int i = 0; i < a.size(); i++) {
        mc[i] = a[i];
	}
	for(int i = a.size(); i < MAXN; i++) mc[i] = 0;
    set <long long> s;
    long long cur = 0;
    s.insert(0);
	for(int i  = 0; i < MAXN; i++) {
        int at = mc[i] * (1LL << i);
        cur += at;
        if(inf(x, (1LL << i))) continue;
        long long nec = x * (1LL << i);
        set <long long> :: iterator it = s.lower_bound(nec - cur);
        vector <long long> rs;
        while(it != s.end()) {
            rs.push_back(*it);
            it++;
        }
        for(int j = 0; j < rs.size(); j++) {
            s.insert(rs[j] - nec);
        }
	}
	return s.size();
}
/*int main() {
    int t;
    scanf("%d", &t);
    while(t--) {
    long long x;
    int k;
    vector <long long> a;
    scanf("%d %lld", &k, &x);
    for(int i = 0; i < k; i++) {
        long long b;
        scanf("%lld", &b);
        a.push_back(b);
    }
    printf("resp == %lld\n", count_tastiness(x, a));
    }
    return 0;
}
*/

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:14:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for(int i = 0; i < a.size(); i++) {
      |                 ~~^~~~~~~~~~
biscuits.cpp:32:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         for(int j = 0; j < rs.size(); j++) {
      |                        ~~^~~~~~~~~~~
biscuits.cpp:13:6: warning: unused variable 'tot' [-Wunused-variable]
   13 |  int tot = 0;
      |      ^~~
biscuits.cpp: In function 'bool inf(long long int, long long int)':
biscuits.cpp:11:1: warning: control reaches end of non-void function [-Wreturn-type]
   11 | }
      | ^

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