QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#457945 | #8830. Breaking Bad | ucup-team008# | WA | 953ms | 7296kb | C++17 | 9.8kb | 2024-06-29 14:55:24 | 2024-06-29 14:55:24 |
Judging History
answer
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <complex>
#include <cstring>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <unordered_map>
#include <vector>
using namespace std;
// BEGIN NO SAD
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define trav(a, x) for(auto& a : x)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
typedef vector<int> vi;
#define f first
#define s second
#define derr if(0) cerr
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}
template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ", "; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? ", " : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#define debug(x...) cerr << "\e[91m"<<__func__<<":"<<__LINE__<<" [" << #x << "] = ["; _print(x); cerr << "\e[39m" << flush;
// END NO SAD
template<class Fun>
class y_combinator_result {
Fun fun_;
public:
template<class T>
explicit y_combinator_result(T &&fun): fun_(std::forward<T>(fun)) {}
template<class ...Args>
decltype(auto) operator()(Args &&...args) {
return fun_(std::ref(*this), std::forward<Args>(args)...);
}
};
template<class Fun>
decltype(auto) y_combinator(Fun &&fun) {
return y_combinator_result<std::decay_t<Fun>>(std::forward<Fun>(fun));
}
template<class T>
bool updmin(T& a, T b) {
if(b < a) {
a = b;
return true;
}
return false;
}
template<class T>
bool updmax(T& a, T b) {
if(b > a) {
a = b;
return true;
}
return false;
}
typedef int64_t ll;
struct barrett_reduction {
unsigned mod;
uint64_t div;
barrett_reduction(unsigned m) : mod(m), div(-1LLU / m) {}
unsigned operator()(uint64_t a) const {
#ifdef __SIZEOF_INT128__
uint64_t q = uint64_t(__uint128_t(div) * a >> 64);
uint64_t r = a - q * mod;
return unsigned(r < mod ? r : r - mod);
#endif
return unsigned(a % mod);
}
};
template<const int &MOD, const barrett_reduction &barrett>
struct _b_int {
int val;
_b_int(int64_t v = 0) {
if (v < 0) v = v % MOD + MOD;
if (v >= MOD) v %= MOD;
val = int(v);
}
_b_int(uint64_t v) {
if (v >= uint64_t(MOD)) v %= MOD;
val = int(v);
}
_b_int(int v) : _b_int(int64_t(v)) {}
_b_int(unsigned v) : _b_int(uint64_t(v)) {}
static int inv_mod(int a, int m = MOD) {
// https://en.wikipedia.org/wiki/Extended_Euclidean_algorithm#Example
int g = m, r = a, x = 0, y = 1;
while (r != 0) {
int q = g / r;
g %= r; swap(g, r);
x -= q * y; swap(x, y);
}
return x < 0 ? x + m : x;
}
explicit operator int() const { return val; }
explicit operator unsigned() const { return val; }
explicit operator int64_t() const { return val; }
explicit operator uint64_t() const { return val; }
explicit operator double() const { return val; }
explicit operator long double() const { return val; }
_b_int& operator+=(const _b_int &other) {
val -= MOD - other.val;
if (val < 0) val += MOD;
return *this;
}
_b_int& operator-=(const _b_int &other) {
val -= other.val;
if (val < 0) val += MOD;
return *this;
}
static unsigned fast_mod(uint64_t x) {
#if !defined(_WIN32) || defined(_WIN64)
return barrett(x);
#endif
// Optimized mod for Codeforces 32-bit machines.
// x must be less than 2^32 * MOD for this to work, so that x / MOD fits in an unsigned 32-bit int.
unsigned x_high = unsigned(x >> 32), x_low = unsigned(x);
unsigned quot, rem;
asm("divl %4\n"
: "=a" (quot), "=d" (rem)
: "d" (x_high), "a" (x_low), "r" (MOD));
return rem;
}
_b_int& operator*=(const _b_int &other) {
val = fast_mod(uint64_t(val) * other.val);
return *this;
}
_b_int& operator/=(const _b_int &other) {
return *this *= other.inv();
}
friend _b_int operator+(const _b_int &a, const _b_int &b) { return _b_int(a) += b; }
friend _b_int operator-(const _b_int &a, const _b_int &b) { return _b_int(a) -= b; }
friend _b_int operator*(const _b_int &a, const _b_int &b) { return _b_int(a) *= b; }
friend _b_int operator/(const _b_int &a, const _b_int &b) { return _b_int(a) /= b; }
_b_int& operator++() {
val = val == MOD - 1 ? 0 : val + 1;
return *this;
}
_b_int& operator--() {
val = val == 0 ? MOD - 1 : val - 1;
return *this;
}
_b_int operator++(int) { _b_int before = *this; ++*this; return before; }
_b_int operator--(int) { _b_int before = *this; --*this; return before; }
_b_int operator-() const {
return val == 0 ? 0 : MOD - val;
}
friend bool operator==(const _b_int &a, const _b_int &b) { return a.val == b.val; }
friend bool operator!=(const _b_int &a, const _b_int &b) { return a.val != b.val; }
friend bool operator<(const _b_int &a, const _b_int &b) { return a.val < b.val; }
friend bool operator>(const _b_int &a, const _b_int &b) { return a.val > b.val; }
friend bool operator<=(const _b_int &a, const _b_int &b) { return a.val <= b.val; }
friend bool operator>=(const _b_int &a, const _b_int &b) { return a.val >= b.val; }
_b_int inv() const {
return inv_mod(val);
}
_b_int pow(int64_t p) const {
if (p < 0)
return inv().pow(-p);
_b_int a = *this, result = 1;
while (p > 0) {
if (p & 1)
result *= a;
p >>= 1;
if (p > 0)
a *= a;
}
return result;
}
friend ostream& operator<<(ostream &os, const _b_int &m) {
return os << m.val;
}
friend istream& operator>>(istream &is, _b_int &m) {
int64_t x;
is >> x;
m = x;
return is;
}
};
int MOD1 = 998244353;
barrett_reduction barrett1(MOD1);
using mnum1 = _b_int<MOD1, barrett1>;
int MOD2 = 1000000007;
barrett_reduction barrett2(MOD2);
using mnum2 = _b_int<MOD2, barrett2>;
struct rabinkarp {
typedef pair<mnum1, mnum2> shash;
int STRING_SZ;
const mnum1 HASH1 = 3137;
const mnum2 HASH2 = 1009;
vector<shash> hashes;
vector<mnum1> hash1pows;
vector<mnum2> hash2pows;
rabinkarp() {}
rabinkarp(const string& s) {
STRING_SZ = sz(s);
hash1pows.resize(STRING_SZ+1);
hash1pows[0] = 1;
for(int i = 1; i <= STRING_SZ; i++) hash1pows[i] = hash1pows[i-1] * HASH1;
hash2pows.resize(STRING_SZ+1);
hash2pows[0] = 1;
for(int i = 1; i <= STRING_SZ; i++) hash2pows[i] = hash2pows[i-1] * HASH2;
hashes.resize(STRING_SZ+1);
for(int i = 0; i < sz(s); i++) {
hashes[i+1].first = hashes[i].first * HASH1 + s[i];
hashes[i+1].second = hashes[i].second * HASH2 + s[i];
}
}
inline array<int, 2> getHash(int lhs, int rhs) {
// [lhs, rhs)
mnum1 a = hashes[rhs].first - hashes[lhs].first * hash1pows[rhs-lhs];
mnum2 b = hashes[rhs].second - hashes[lhs].second * hash2pows[rhs-lhs];
return {(int)a, (int)b};
}
inline array<int, 2> hashStr(const vector<int>& s) {
mnum1 a = 0;
mnum2 b = 0;
for(auto x: s) {
a = a * HASH1 + x;
b = b * HASH2 + x;
}
return {(int)a, (int)b};
}
};
mt19937 g1(0x1414);
int get_random_int(int a, int b) {
return uniform_int_distribution<int>(a, b)(g1);
}
void solve() {
auto srct = clock();
string ret = "NNNNN";
int n;
cin >> n;
vector<vector<int>> g(n);
for(auto& x: g) {
x.resize(n);
for(auto& y: x) cin >> y;
}
vector<int> ord(n);
iota(all(ord), 0);
int qq = 0;
while(true) {
int ans = 0;
for(int i = 0; i < n; i++) {
ans += g[i][ord[i]];
if(ans >= 5) ans -= 5;
}
ret[ans] = 'Y';
if(++qq % (1 << 8) == 0) {
if(clock() - srct > 0.95 * CLOCKS_PER_SEC) {
break;
}
}
for(int qqq = 0; qqq < 100; qqq++) {
int a = get_random_int(0, n-1);
int b = get_random_int(0, n-1);
if(a == b) continue;
if(g[a][ord[a]] + g[b][ord[b]] != g[a][ord[b]] + g[b][ord[a]]) {
int nans = ans - g[a][ord[a]] - g[b][ord[b]] + g[a][ord[b]] + g[b][ord[a]];
ret[(nans%5+5)%5] = 'Y';
}
}
shuffle(all(ord), g1);
}
cout << ret << "\n";
}
// what would chika do
// are there edge cases (N=1?)
// are array sizes proper (scaled by proper constant, for example 2* for koosaga tree)
// integer overflow?
// DS reset properly between test cases
// are you doing geometry in floating points
// are you not using modint when you should
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
solve();
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 953ms
memory: 3604kb
input:
2 0 4 4 0
output:
YNNYN
result:
ok "YNNYN"
Test #2:
score: 0
Accepted
time: 952ms
memory: 3648kb
input:
2 1 1 1 1
output:
NNYNN
result:
ok "NNYNN"
Test #3:
score: 0
Accepted
time: 948ms
memory: 3744kb
input:
4 0 0 1 0 0 1 0 1 0 0 0 0 1 1 0 0
output:
YYYYN
result:
ok "YYYYN"
Test #4:
score: 0
Accepted
time: 947ms
memory: 3648kb
input:
4 0 0 0 1 0 1 0 1 1 0 0 0 0 1 0 0
output:
YYYYN
result:
ok "YYYYN"
Test #5:
score: 0
Accepted
time: 952ms
memory: 3684kb
input:
10 1 4 2 0 0 2 0 1 3 3 0 3 1 4 4 1 4 0 2 2 1 4 2 0 0 2 0 1 0 3 0 3 1 4 4 1 4 0 2 2 4 2 0 3 3 0 3 4 1 1 2 0 3 1 1 3 1 2 4 4 4 2 0 3 3 0 3 4 1 1 2 0 3 1 1 3 1 2 4 4 1 4 2 0 0 2 0 1 3 3 3 1 4 2 2 4 2 3 0 0
output:
NYNNY
result:
ok "NYNNY"
Test #6:
score: 0
Accepted
time: 948ms
memory: 3912kb
input:
10 4 4 4 1 3 4 1 4 3 0 3 3 3 0 2 3 0 3 2 4 3 3 3 0 2 3 0 3 2 4 4 4 4 1 3 4 1 4 3 0 2 2 2 4 1 2 4 2 1 3 2 2 2 4 1 3 4 2 1 3 4 4 4 1 3 4 1 4 3 0 3 3 3 0 2 3 0 3 2 4 2 2 2 4 1 2 4 2 1 3 4 4 4 1 3 4 1 1 3 0
output:
YYYNY
result:
ok "YYYNY"
Test #7:
score: 0
Accepted
time: 948ms
memory: 3648kb
input:
10 1 2 0 4 2 3 4 0 2 3 0 1 4 3 1 2 3 4 1 2 4 0 3 2 0 1 2 3 0 1 1 2 0 4 2 3 4 0 2 3 3 4 2 1 4 0 1 2 4 0 0 1 4 3 1 2 3 4 1 2 2 3 1 0 3 4 0 1 3 4 3 1 1 1 4 0 1 2 4 0 1 2 0 4 2 3 4 0 2 3 1 3 0 4 2 3 4 0 2 3
output:
NYYYY
result:
ok "NYYYY"
Test #8:
score: 0
Accepted
time: 952ms
memory: 3684kb
input:
10 3 4 0 3 2 2 0 4 0 2 0 1 2 0 4 4 2 1 2 4 2 3 4 2 1 1 4 3 4 1 0 1 2 0 4 4 2 1 2 4 0 1 2 0 4 4 2 1 2 4 0 1 2 0 4 4 2 1 2 4 3 4 0 3 2 2 0 4 0 2 0 1 2 0 4 4 2 1 2 4 3 4 0 3 2 2 0 4 0 2 0 1 2 0 4 4 2 1 2 4
output:
NYNNN
result:
ok "NYNNN"
Test #9:
score: 0
Accepted
time: 950ms
memory: 3716kb
input:
10 4 1 3 1 2 0 3 2 4 4 0 2 4 2 3 1 4 3 0 0 1 1 1 1 2 0 3 2 4 1 2 4 1 4 0 3 1 0 2 2 1 3 0 3 4 2 0 4 1 1 2 4 1 4 0 3 1 0 2 2 2 4 1 4 0 3 1 0 2 2 0 2 4 2 3 1 4 3 0 0 3 0 2 1 1 4 2 1 3 3 4 1 3 1 2 0 3 2 4 4
output:
YYYYY
result:
ok "YYYYY"
Test #10:
score: 0
Accepted
time: 952ms
memory: 3712kb
input:
10 1 2 0 2 4 2 3 1 2 1 4 0 3 0 2 0 1 4 0 4 0 1 4 1 3 1 2 0 1 0 0 1 4 1 3 1 2 0 1 0 3 4 2 4 1 4 0 3 4 3 4 0 3 0 2 0 1 4 0 4 0 1 4 1 3 1 2 0 1 0 0 1 4 1 3 1 2 0 1 0 3 4 2 4 1 4 0 3 4 3 0 1 4 1 3 1 2 0 1 0
output:
NNNYN
result:
ok "NNNYN"
Test #11:
score: 0
Accepted
time: 952ms
memory: 3944kb
input:
10 1 4 1 2 1 3 3 2 1 2 0 3 0 1 0 2 2 1 0 1 0 4 0 3 0 2 2 1 0 1 1 4 1 2 1 3 3 2 1 2 4 2 4 0 4 1 1 0 4 0 1 1 1 4 1 0 3 2 1 2 0 0 0 1 0 2 2 1 0 1 2 0 2 3 2 4 4 3 2 3 2 0 2 3 2 4 4 3 2 3 2 0 2 3 2 4 4 3 2 3
output:
YYYYY
result:
ok "YYYYY"
Test #12:
score: 0
Accepted
time: 952ms
memory: 3660kb
input:
10 1 2 0 1 4 0 1 2 2 2 1 2 0 1 4 3 1 2 2 2 0 1 4 0 3 1 0 1 1 1 1 2 0 1 4 3 1 2 2 2 3 4 2 3 1 4 3 4 4 4 0 1 4 0 3 1 0 1 1 1 4 0 3 4 2 0 4 0 0 0 3 4 2 3 1 4 3 4 4 4 4 0 3 4 2 0 4 0 0 0 0 1 4 0 3 1 0 1 1 1
output:
YNYNY
result:
ok "YNYNY"
Test #13:
score: 0
Accepted
time: 952ms
memory: 3876kb
input:
10 1 3 0 0 2 1 3 4 3 3 3 3 0 0 4 1 3 4 3 3 1 1 3 3 2 4 1 2 1 1 2 4 1 1 3 2 4 0 4 4 4 1 3 3 0 4 1 2 1 1 2 4 1 1 3 2 4 0 4 4 0 2 4 4 1 0 2 3 2 2 3 0 2 2 4 3 0 1 0 0 3 0 2 2 4 3 0 1 0 0 4 2 4 4 1 0 2 3 2 2
output:
YYYNY
result:
ok "YYYNY"
Test #14:
score: 0
Accepted
time: 948ms
memory: 3712kb
input:
10 2 0 3 1 3 0 0 0 4 1 1 4 2 0 2 4 4 4 3 0 2 0 3 1 3 0 0 0 4 1 1 4 2 0 2 4 4 4 3 0 1 4 2 0 2 4 4 4 3 0 3 3 4 2 4 1 1 1 0 2 3 1 4 2 4 1 1 1 0 2 4 2 0 3 0 2 2 2 1 3 3 1 4 2 4 1 1 1 0 2 1 4 2 0 2 4 4 4 3 0
output:
YNYNN
result:
ok "YNYNN"
Test #15:
score: 0
Accepted
time: 953ms
memory: 7296kb
input:
1000 3 4 1 2 4 1 0 3 0 4 1 4 3 1 4 4 1 0 1 2 3 1 0 1 3 4 4 0 3 0 3 2 2 1 0 4 1 3 3 0 3 1 3 2 2 0 3 3 2 2 3 0 4 2 1 2 1 2 1 4 2 4 1 4 2 4 3 2 0 3 0 4 2 1 2 3 3 0 2 0 3 3 1 1 0 3 4 3 2 0 4 0 3 4 4 2 3 4 2 3 4 2 1 3 2 2 4 1 0 2 2 4 0 1 2 0 4 1 3 2 3 2 2 2 1 4 4 4 2 0 0 4 4 1 3 4 0 2 2 3 1 1 3 2 3 2 3 0...
output:
NNNYN
result:
ok "NNNYN"
Test #16:
score: -100
Wrong Answer
time: 952ms
memory: 7148kb
input:
1000 2 3 0 1 0 0 0 1 1 4 1 4 2 3 0 3 4 2 3 2 4 2 1 1 1 1 0 0 3 3 2 0 2 2 2 4 3 0 3 3 3 0 1 3 0 2 0 1 0 0 0 3 1 4 3 1 4 0 3 4 4 1 3 3 4 0 1 4 2 3 0 1 0 0 2 3 1 4 0 0 2 1 2 3 3 4 4 3 3 2 0 0 4 3 2 3 3 2 4 0 2 2 3 0 3 2 4 1 0 2 4 2 4 1 2 1 3 0 3 3 0 1 1 0 2 3 0 2 4 1 4 3 4 1 2 2 2 4 0 1 3 3 0 0 1 3 2 4...
output:
NYNYY
result:
wrong answer 1st words differ - expected: 'NYYYY', found: 'NYNYY'