Submission #496472

#TimeUsernameProblemLanguageResultExecution timeMemory
496472xynexDistributing Candies (IOI21_candies)C++17
Compilation error
0 ms0 KiB
/* * Author: xynex * Created: 21.12.2021 13:11 * Why am I so stupid? :c * Slishkom slab */ #include <bits/stdc++.h> // #pragma GCC optimize("inline") // #pragma GCC optimize("-fgcse,-fgcse-lm") // #pragma GCC optimize("-ftree-pre,-ftree-vrp") // #pragma GCC optimize("-ffast-math") // #pragma GCC optimize("-fipa-sra") // #pragma GCC optimize("-fpeephole2") // #pragma GCC optimize("-fsched-spec") // #pragma GCC optimize("Ofast,no-stack-protector") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native") // #pragma GCC optimize("unroll-loops") 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 = 5e3 + 5; const ll INF = 9e18; const int M = 5e2 + 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*/ void precalc() { } bitset<M> dp[M][N]; char s[M][M]; void solve() { int n, m, k; read(n, m, k); for(int i = 1; i <= n; ++i) { for(int j = 1; j <= m; ++j) { read(s[i][j]); dp[i][0][j - 1] = (s[i][j] == '#' ? 0 : 1); } } for(int i = 1; i <= k; ++i) { char x; read(x); for(int j = 1; j <= n; ++j) { dp[j][i] = dp[j][0]; if(x == 'N') dp[j][i] &= dp[j + 1][i - 1]; if(x == 'S') dp[j][i] &= dp[j - 1][i - 1]; if(x == 'W') dp[j][i] &= dp[j][i - 1] >> 1; if(x == 'E') dp[j][i] &= dp[j][i - 1] << 1; if(x == '?') dp[j][i] &= (dp[j + 1][i - 1]) | (dp[j - 1][i - 1]) | (dp[j][i - 1] >> 1) | (dp[j][i - 1] << 1); } } ll ans = 0; for(int i = 1; i <= n; ++i) { ans += dp[i][k].count(); } print(ans); } int main() { //freop(""); ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int t = 1; //read(t); precalc(); for (int i = 1; i <= t; ++i) { //write("Case #" + to_string(i) + ": "); solve(); } return 0; }

Compilation message (stderr)

candies.cpp: In function 'void freop(std::string)':
candies.cpp:73:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
candies.cpp:74:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccLYiUDl.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccI4IoHl.o:candies.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccLYiUDl.o: in function `main':
grader.cpp:(.text.startup+0x30e): undefined reference to `distribute_candies(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status