답안 #143362

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
143362 2019-08-13T19:39:55 Z rqi Vision Program (IOI19_vision) C++14
0 / 100
16 ms 1776 KB

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
 
#include "vision.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/rope>
 
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
 
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
 
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
 
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
 
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
 
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= (a); i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto& a : x)
 
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
 
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rsz resize
 
const int MOD = 998244353; // 998244353
const ll INF = 1e18;
const int MX = 200005;
const ld PI = 4*atan((ld)1);
 
template<class T> void ckmin(T &a, T b) { a = min(a, b); }
template<class T> void ckmax(T &a, T b) { a = max(a, b); }
 
namespace input {
    template<class T> void re(complex<T>& x);
    template<class T1, class T2> void re(pair<T1,T2>& p);
    template<class T> void re(vector<T>& a);
    template<class T, size_t SZ> void re(array<T,SZ>& a);
 
    template<class T> void re(T& x) { cin >> x; }
    void re(double& x) { string t; re(t); x = stod(t); }
    void re(ld& x) { string t; re(t); x = stold(t); }
    template<class Arg, class... Args> void re(Arg& first, Args&... rest) { 
        re(first); re(rest...); 
    }
 
    template<class T> void re(complex<T>& x) { T a,b; re(a,b); x = cd(a,b); }
    template<class T1, class T2> void re(pair<T1,T2>& p) { re(p.f,p.s); }
    template<class T> void re(vector<T>& a) { F0R(i,sz(a)) re(a[i]); }
    template<class T, size_t SZ> void re(array<T,SZ>& a) { F0R(i,SZ) re(a[i]); }
}
 
using namespace input;
 
namespace output {
    template<class T1, class T2> void pr(const pair<T1,T2>& x);
    template<class T, size_t SZ> void pr(const array<T,SZ>& x);
    template<class T> void pr(const vector<T>& x);
    template<class T> void pr(const set<T>& x);
    template<class T1, class T2> void pr(const map<T1,T2>& x);
 
    template<class T> void pr(const T& x) { cout << x; }
    template<class Arg, class... Args> void pr(const Arg& first, const Args&... rest) { 
        pr(first); pr(rest...); 
    }
 
    template<class T1, class T2> void pr(const pair<T1,T2>& x) { 
        pr("{",x.f,", ",x.s,"}"); 
    }
    template<class T> void prContain(const T& x) {
        pr("{");
        bool fst = 1; for (const auto& a: x) pr(!fst?", ":"",a), fst = 0; // const needed for vector<bool>
        pr("}");
    }
    template<class T, size_t SZ> void pr(const array<T,SZ>& x) { prContain(x); }
    template<class T> void pr(const vector<T>& x) { prContain(x); }
    template<class T> void pr(const set<T>& x) { prContain(x); }
    template<class T1, class T2> void pr(const map<T1,T2>& x) { prContain(x); }
    
    void ps() { pr("\n"); }
    template<class Arg> void ps(const Arg& first) { 
        pr(first); ps(); // no space at end of line
    }
    template<class Arg, class... Args> void ps(const Arg& first, const Args&... rest) { 
        pr(first," "); ps(rest...); // print w/ spaces
    }
}
 
using namespace output;
 
namespace io {
    void setIn(string s) { freopen(s.c_str(),"r",stdin); }
    void setOut(string s) { freopen(s.c_str(),"w",stdout); }
    void setIO(string s = "") {
        ios_base::sync_with_stdio(0); cin.tie(0); // fast I/O
        if (sz(s)) { setIn(s+".in"), setOut(s+".out"); } // for USACO
    }
}
 
using namespace io;
 
template<class T> T invGeneral(T a, T b) {
    a %= b; if (a == 0) return b == 1 ? 0 : -1;
    T x = invGeneral(b,a); 
    return x == -1 ? -1 : ((1-(ll)b*x)/a+b)%b;
}
 
template<class T> struct modular {
    T val; 
    explicit operator T() const { return val; }
    modular() { val = 0; }
    modular(const ll& v) { 
        val = (-MOD <= v && v <= MOD) ? v : v % MOD;
        if (val < 0) val += MOD;
    }
    
    friend ostream& operator<<(ostream& os, const modular& a) { return os << a.val; }
    friend bool operator==(const modular& a, const modular& b) { return a.val == b.val; }
    friend bool operator!=(const modular& a, const modular& b) { return !(a == b); }
    friend bool operator<(const modular& a, const modular& b) { return a.val < b.val; }
 
    modular operator-() const { return modular(-val); }
    modular& operator+=(const modular& m) { if ((val += m.val) >= MOD) val -= MOD; return *this; }
    modular& operator-=(const modular& m) { if ((val -= m.val) < 0) val += MOD; return *this; }
    modular& operator*=(const modular& m) { val = (ll)val*m.val%MOD; return *this; }
    friend modular pow(modular a, ll p) {
        modular ans = 1; for (; p; p /= 2, a *= a) if (p&1) ans *= a;
        return ans;
    }
    friend modular inv(const modular& a) { 
        auto i = invGeneral(a.val,MOD); assert(i != -1);
        return i;
    } // equivalent to return exp(b,MOD-2) if MOD is prime
    modular& operator/=(const modular& m) { return (*this) *= inv(m); }
    
    friend modular operator+(modular a, const modular& b) { return a += b; }
    friend modular operator-(modular a, const modular& b) { return a -= b; }
    friend modular operator*(modular a, const modular& b) { return a *= b; }
    
    friend modular operator/(modular a, const modular& b) { return a /= b; }
};
 
typedef modular<int> mi;
typedef pair<mi,mi> pmi;
typedef vector<mi> vmi;
typedef vector<pmi> vpmi;
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int rows[205];
int cols[205];
int nrows[205];
int ncols[205];
int zero, one;
int curnum;
vi sumbits;
vi kbits;
vi xorbits;

void ad(int pindex){
	// put carry first, remember to update curnum
	// smallest bit to largest bit
	int carry = pindex;
	for(int i = 0; i < 9; i++){
		vector<int> v = {sumbits[i], carry};
		carry = add_and(v);
		sumbits[i] = add_xor(v);
	}
}
void construct_network(int H, int W, int K){
	// construct row 1s and 0s
	for(int i = 0; i < H; i++){
		vector<int> v;
		for(int j = 0; j < W; j++){
			v.pb(W*i+j);
		}
		rows[i] = add_or(v);
    }
    
    
	for(int i = 0; i < W; i++){
		vector<int> v;
		for(int j = 0; j < H; j++){
			v.pb(i+W*j);
		}
		cols[i] = add_or(v);
    }
    // make 0 and 1
	zero = add_and({0, add_not({0})});
	one = add_or({0, add_not({0})});
	
	// make nrows
	nrows[0] = add_or({rows[0]});
	for(int i = 1; i < H; i++){
		nrows[i] = add_xor({rows[i], nrows[i-1]});
	}
	// make ncols
	ncols[0] = add_or({cols[0]});
	for(int i = 1; i < W; i++){
		add_xor({cols[i], ncols[i-1]});
		ncols[i] = add_xor({cols[i], ncols[i-1]});
	}
	// add 1
	for(int i = 0; i < 9; i++){
		sumbits.pb(add_or({zero})); //9 bits
	}
	for(int i = 0; i < H; i++){
		ad(nrows[i]);
	}
	for(int i = 0; i < W; i++){
		ad(ncols[i]);
    }
    // construct kbits
    int bits = K;
    for(int i = 0; i < 9; i++){
		if(bits % 2 == 1){
			kbits.pb(add_or({one}));
		}
		else{
			kbits.pb(add_or({zero}));
		}
		bits/=2;
	}
	// construct xorbits
	for(int i = 0; i < 9; i++){
		xorbits.pb(add_xor({kbits[i], sumbits[i]}));
	}
	// output ans
	add_not({add_or(xorbits)});
}

Compilation message

vision.cpp: In function 'void io::setIn(std::__cxx11::string)':
vision.cpp:116:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     void setIn(string s) { freopen(s.c_str(),"r",stdin); }
                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
vision.cpp: In function 'void io::setOut(std::__cxx11::string)':
vision.cpp:117:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     void setOut(string s) { freopen(s.c_str(),"w",stdout); }
                             ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 380 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 380 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 380 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 380 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 5 ms 760 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 376 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 16 ms 1776 KB on inputs (80, 199), (81, 199), expected 1, but computed 0
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 380 KB on inputs (0, 0), (0, 1), expected 1, but computed 0
2 Halted 0 ms 0 KB -