제출 #338346

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
338346		mayflyyh	비스킷 담기 (IOI20_biscuits)	C++14	컴파일 에러	0 ms	0 KiB

biscuits

#include<bits/stdc++.h>
#define ll long long
ll dp[70];
ll b[70];
ll count_tastiness(ll x, std::vector<ll> a){
	int end=62;
	for(int i=0;i<a.size();++i)
		if(a[i]) b[i]=a[i];
	for(int i=end;i+1;--i){
		if(i==end){
			dp[i]=1;
		}
		else{
			dp[i]=0;
			for(int j=end;j>=i+1;--j){
				ll min=0,max=(1ll<<j-i)-1;
				ll ai=0;
				for(int k=j-1;k>=i;--k){
					ai=ai*2+b[k];
					ll y_=0;
					if(k>i){
						y_=(ai/x+1)<<(k-i);
						if(y_>min)
							min=y_;
					}
					else{
						y_=ai/x;
						if(y_<max)
							max=y_; 
					}
				}
				if(min<=max)
					dp[i]+=dp[j]*(max-min+1);
			}
		}
	}
	return dp[0];
}

int main(){
	std::vector<ll> a;
	for(int i=1;i<=50;++i){
		a.push_back(894);
	}
	std::cout<<count_tastiness(3,a); 
	return 0;
}

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:7:15: 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:16:25: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   16 |     ll min=0,max=(1ll<<j-i)-1;
      |                        ~^~
/tmp/ccpmQOTV.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccFZlqvS.o:biscuits.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status