이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#define MASK(x) (1LL << x)
#define GETBIT(mask, x) ((mask >> (x))&1)
#define ONBIT(mask, x) (mask | (1LL << (x)))
#define Each(type, i, a, b) for(type i = (a) ; i <= (b) ; ++i)
#define REach(type, i, a, b) for(type i = (a) ; i >= (b) ; --i)
using namespace std;
typedef long long ll;
const int N = 2e5 + 7;
const int MOD = 1e9 + 7;
const int INF = 2e9;
const double eps = 1e-9;
const ll oo = 4e18;
template<class X> bool maximize(X &x, X y) {return (x + eps < y ? x = y, true : false);}
template<class X> bool minimize(X &x, X y) {return (x > y + eps ? x = y, true : false);}
void add(int &x, int y) {x += y; if(x >= MOD) x -= MOD;}
void sub(int &x, int y) {x -= y; if(x < 0) x += MOD;}
int radd(int x, int y) {add(x, y); return x;}
int rsub(int x, int y) {sub(x, y); return x;}
string to2(int val) {bitset<10> temp(val); return temp.to_string();}
int n;
namespace SUB1 {
vector<int> solve(int l, int u, vector<int> w) {
vector<int> result(0);
int sum = 0;
while(result.size() < n && sum < l) {
result.push_back(result.size());
sum += w[0];
}
if(sum > u || sum < l) return vector<int>(0);
return result;
}
}
namespace SUB4 {
bool f[10003];
int id[10003];
vector<int> solve(int l, int u, vector<int> w) {
vector<int> result;
f[0] = 1;
Each(int, i, 0, n - 1) {
REach(int, wei, u, w[i])
if(f[wei - w[i]] && !f[wei]) {
f[wei] = 1;
id[wei] = i;
if(l <= wei && wei <= u) {
int cur = wei;
while(cur > 0) {
result.push_back(id[cur]);
cur -= w[id[cur]];
}
return result;
}
}
}
return vector<int>(0);
}
}
vector<int> find_subset(int l, int u, vector<int> w) {
n = w.size();
int wmax = -1;
bool isequal = true; int ele = w[0];
for(int x : w) {
maximize(wmax, x);
isequal &= (ele == x);
}
if(n <= 100 && wmax <= 100 && l <= 1000 && isequal)
return SUB1::solve(l, u, w);
if(n <= 10000 && l <= 10000)
return SUB4::solve(l, u, w);
}
컴파일 시 표준 에러 (stderr) 메시지
molecules.cpp: In function 'std::vector<int> SUB1::solve(int, int, std::vector<int>)':
molecules.cpp:33:29: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
33 | while(result.size() < n && sum < l) {
| ~~~~~~~~~~~~~~^~~
molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type]
83 | }
| ^
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