제출 #580035

#제출 시각아이디문제언어결과실행 시간메모리
580035xynexDetecting Molecules (IOI16_molecules)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> //#include "molecules.h" using namespace std; #define ll long long #define dl double long #define ull unsigned long long #define pr pair #define vt vector #define ff first #define ss second #define mp make_pair #define sz(a) (int)a.size() #define pb push_back #define pf push_front #define popB pop_back #define popF pop_front #define bit_count __builtin_popcount #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define sp(x) fixed << setprecision(x) template<typename T> T get_rand(T l, T r) { random_device rd; mt19937 gen(rd()); return uniform_int_distribution<T>(l, r)(gen); } template<typename T> T lcm(T a, T b) { return a * (b / __gcd(a, b)); } template<class A> void read(vt<A>& v); template<class A, size_t S> void read(array<A, S>& a); template<class T> void read(T& x) { cin >> x; } void read(double& d) { string t; read(t); d = stod(t); } void read(long double& d) { string t; read(t); d = stold(t); } template<class H, class... T> void read(H& h, T&... t) { read(h); read(t...); } template<class A> void read(vt<A>& x) { for (auto& a : x) read(a); } template<class A, size_t S> void read(array<A, S>& x) { for (auto& a : x) read(a); } string to_string(char c) { return string(1, c); } string to_string(bool b) { return b ? "true" : "false"; } string to_string(const char* s) { return string(s); } string to_string(string s) { return s; } string to_string(vt<bool> v) { string res; for (int i = 0; i < sz(v); ++i) res += char('0' + v[i]); return res; } template<size_t S> string to_string(bitset<S> b) { string res; for (int i = 0; i < S; ++i) res += char('0' + b[i]); return res; } template<class T> string to_string(T v) { bool f = 1; string res; for (auto x : v) { if (!f) res += ' '; f = 0; res += to_string(x); } return res; } template<class A> void write(A x) { cout << to_string(x); } template<class H, class... T> void write(const H& h, const T&... t) { write(h); write(t...); } void print() { write("\n"); } template<class H, class... T> void print(const H& h, const T&... t) { write(h); if (sizeof...(t)) write(' '); print(t...); } void freop(string s) { freopen((s + ".in").c_str(), "r", stdin); freopen((s + ".out").c_str(), "w", stdout); } const int MOD = 1e9 + 7; const int N = 3e6 + 5; const ll INF = 9e18; const int M = 3e3 + 5; const dl pi = acos(-1); const dl eps = 1e-12; const int sq = 700; int dx[] = {-1, 0, 1, 0}; int dy[] = {0, -1, 0, 1}; /* ll vs int*/ std::vector<int> find_subset(int l, int u, std::vector<int> w) { int pos = 0; ll sum = 0; for(int i = 0; i < sz(w); ++i) { while(pos < sz(w) && sum < l) { sum += w[pos++]; } if(sum >= l && sum <= u) { if((i + 1) == pos) return {i + 1}; return {i + 1, pos}; } sum -= w[i]; } return {0}; } int main() { int n, l, u; assert(3 == scanf("%d %d %d", &n, &l, &u)); std::vector<int> w(n); for (int i = 0; i < n; i++) assert(1 == scanf("%d", &w[i])); std::vector<int> result = find_subset(l, u, w); printf("%d\n", (int)result.size()); for (int i = 0; i < (int)result.size(); i++) printf("%d%c", result[i], " \n"[i == (int)result.size() - 1]); }

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'void freop(std::string)':
molecules.cpp:56:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |   freopen((s + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
molecules.cpp:57:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   57 |   freopen((s + ".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/cc85yw6D.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccVOj6TE.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status