제출 #1091926

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1091926		onlk97	비스킷 담기 (IOI20_biscuits)	C++14	0 / 100	2 ms	348 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
map <long long,long long> dp;
vector <long long> ps;
long long X;
long long calc(long long u){
    if (u<=0) return 0;
    if (dp.find(u)!=dp.end()) return dp[u];
    long long g=__lg(u-1);
    return dp[u]=calc(1ll<<g)+calc(min(u,ps[g]/X+1)-(1ll<<g));
}
long long count_tastiness(long long x,vector <long long> a){
    dp.clear();
    dp[1]=1;
    ps.clear();
    ps.push_back(a[0]);
    for (int i=1; i<a.size(); i++) ps.push_back(ps.back()+(a[i]<<i));
    ps.push_back(ps.back()); ps.push_back(ps.back());
    X=x;
    return calc(ps.back()/x+1);
}

컴파일 시 표준 에러 (stderr) 메시지

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:18:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int i=1; i<a.size(); i++) ps.push_back(ps.back()+(a[i]<<i));
      |                   ~^~~~~~~~~

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