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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#570540 | #9308. World Cup | Niiu | WA | 0ms | 3688kb | C++20 | 8.0kb | 2024-09-17 16:24:06 | 2024-09-17 16:24:12 |
Judging History
answer
#include <bits/stdc++.h>
#define IOS \
ios::sync_with_stdio(false); \
cin.tie(nullptr);
#define rep(i, a, b) for (int i = (a); i <= (b); ++i)
using namespace std;
using i32 = int;
using i64 = long long;
using i128 = __int128;
template <typename T>
T read()
{
T sum = 0, fl = 1;
int ch = getchar();
for (; !isdigit(ch); ch = getchar())
if (ch == '-')
fl = -1;
for (; isdigit(ch); ch = getchar())
sum = sum * 10 + ch - '0';
return sum * fl;
}
template <typename T>
void write(T x)
{
if (x < 0)
{
x = -x;
putchar('-');
}
if (x > 9)
write(x / 10);
putchar(x % 10 + '0');
}
template <typename T>
constexpr T power(T a, i64 b)
{
T res = 1;
for (; b; b /= 2, a *= a) {
if (b % 2) {
res *= a;
}
}
return res;
}
constexpr i64 mul(i64 a, i64 b, i64 p)
{
i64 res = a * b - i64(1.L * a * b / p) * p;
res %= p;
if (res < 0) {
res += p;
}
return res;
}
template <i64 P>
struct MLong {
i64 x;
constexpr MLong()
: x {}
{
}
constexpr MLong(i64 x)
: x { norm(x % getMod()) }
{
}
static i64 Mod;
constexpr static i64 getMod()
{
if (P > 0) {
return P;
} else {
return Mod;
}
}
constexpr static void setMod(i64 Mod_)
{
Mod = Mod_;
}
constexpr i64 norm(i64 x) const
{
if (x < 0) {
x += getMod();
}
if (x >= getMod()) {
x -= getMod();
}
return x;
}
constexpr i64 val() const
{
return x;
}
explicit constexpr operator i64() const
{
return x;
}
constexpr MLong operator-() const
{
MLong res;
res.x = norm(getMod() - x);
return res;
}
constexpr MLong inv() const
{
assert(x != 0);
return power(*this, getMod() - 2);
}
constexpr MLong& operator*=(MLong rhs) &
{
x = mul(x, rhs.x, getMod());
return *this;
}
constexpr MLong& operator+=(MLong rhs) &
{
x = norm(x + rhs.x);
return *this;
}
constexpr MLong& operator-=(MLong rhs) &
{
x = norm(x - rhs.x);
return *this;
}
constexpr MLong& operator/=(MLong rhs) &
{
return *this *= rhs.inv();
}
friend constexpr MLong operator*(MLong lhs, MLong rhs)
{
MLong res = lhs;
res *= rhs;
return res;
}
friend constexpr MLong operator+(MLong lhs, MLong rhs)
{
MLong res = lhs;
res += rhs;
return res;
}
friend constexpr MLong operator-(MLong lhs, MLong rhs)
{
MLong res = lhs;
res -= rhs;
return res;
}
friend constexpr MLong operator/(MLong lhs, MLong rhs)
{
MLong res = lhs;
res /= rhs;
return res;
}
friend constexpr std::istream& operator>>(std::istream& is, MLong& a)
{
i64 v;
is >> v;
a = MLong(v);
return is;
}
friend constexpr std::ostream& operator<<(std::ostream& os, const MLong& a)
{
return os << a.val();
}
friend constexpr bool operator==(MLong lhs, MLong rhs)
{
return lhs.val() == rhs.val();
}
friend constexpr bool operator!=(MLong lhs, MLong rhs)
{
return lhs.val() != rhs.val();
}
};
template <>
i64 MLong<0LL>::Mod = 1;
template <int P>
struct MInt {
int x;
constexpr MInt()
: x {}
{
}
constexpr MInt(i64 x)
: x { norm(x % getMod()) }
{
}
static int Mod;
constexpr static int getMod()
{
if (P > 0) {
return P;
} else {
return Mod;
}
}
constexpr static void setMod(int Mod_)
{
Mod = Mod_;
}
constexpr int norm(int x) const
{
if (x < 0) {
x += getMod();
}
if (x >= getMod()) {
x -= getMod();
}
return x;
}
constexpr int val() const
{
return x;
}
explicit constexpr operator int() const
{
return x;
}
constexpr MInt operator-() const
{
MInt res;
res.x = norm(getMod() - x);
return res;
}
constexpr MInt inv() const
{
assert(x != 0);
return power(*this, getMod() - 2);
}
constexpr MInt& operator*=(MInt rhs) &
{
x = 1LL * x * rhs.x % getMod();
return *this;
}
constexpr MInt& operator+=(MInt rhs) &
{
x = norm(x + rhs.x);
return *this;
}
constexpr MInt& operator-=(MInt rhs) &
{
x = norm(x - rhs.x);
return *this;
}
constexpr MInt& operator/=(MInt rhs) &
{
return *this *= rhs.inv();
}
friend constexpr MInt operator*(MInt lhs, MInt rhs)
{
MInt res = lhs;
res *= rhs;
return res;
}
friend constexpr MInt operator+(MInt lhs, MInt rhs)
{
MInt res = lhs;
res += rhs;
return res;
}
friend constexpr MInt operator-(MInt lhs, MInt rhs)
{
MInt res = lhs;
res -= rhs;
return res;
}
friend constexpr MInt operator/(MInt lhs, MInt rhs)
{
MInt res = lhs;
res /= rhs;
return res;
}
friend constexpr std::istream& operator>>(std::istream& is, MInt& a)
{
i64 v;
is >> v;
a = MInt(v);
return is;
}
friend constexpr std::ostream& operator<<(std::ostream& os, const MInt& a)
{
return os << a.val();
}
friend constexpr bool operator==(MInt lhs, MInt rhs)
{
return lhs.val() == rhs.val();
}
friend constexpr bool operator!=(MInt lhs, MInt rhs)
{
return lhs.val() != rhs.val();
}
};
template <>
int MInt<0>::Mod = 1;
template <int V, int P>
constexpr MInt<P> CInv = MInt<P>(V).inv();
constexpr int P = 1e9 + 7;//改取模数
using Z = MInt<P>;
struct Comb {
int n;
std::vector<Z> _fac;
std::vector<Z> _invfac;
std::vector<Z> _inv;
Comb()
: n { 0 }
, _fac { 1 }
, _invfac { 1 }
, _inv { 0 }
{
}
Comb(int n)
: Comb()
{
init(n);
}
void init(int m)
{
if (m <= n)
return;
_fac.resize(m + 1);
_invfac.resize(m + 1);
_inv.resize(m + 1);
for (int i = n + 1; i <= m; i++) {
_fac[i] = _fac[i - 1] * i;
}
_invfac[m] = _fac[m].inv();
for (int i = m; i > n; i--) {
_invfac[i - 1] = _invfac[i] * i;
_inv[i] = _invfac[i] * _fac[i - 1];
}
n = m;
}
Z fac(int m)
{
if (m > n)
init(2 * m);
return _fac[m];
}
Z invfac(int m)
{
if (m > n)
init(2 * m);
return _invfac[m];
}
Z inv(int m)
{
if (m > n)
init(2 * m);
return _inv[m];
}
Z binom(int n, int m)
{
if (n < m || m < 0)
return 0;
return fac(n) * invfac(m) * invfac(n - m);
}
} comb;
void solve()
{
vector<pair<int,int>> a(33);
for(int i=1;i<=32;i++)
{
cin>>a[i].first;
a[i].second=i;
}
sort(a.begin()+1,a.end());
int cnt;
for(int i=1;i<=32;i++)
{
if(a[i].second==1)
{
cnt=i-1;
break;
}
}
if(cnt<2)cout<<32<<'\n';
if(cnt>=2&&cnt<6)cout<<16<<'\n';
if(cnt>=6&&cnt<13)cout<<8<<'\n';
if(cnt>=13&&cnt<30)cout<<4<<'\n';
if(cnt==30)cout<<2<<'\n';
if(cnt==31)cout<<1<<'\n';
}
signed main()
{
IOS
int T = 1;
cin>>T;
while (T--)
{
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3572kb
input:
1 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 3688kb
input:
32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 4 1 2 3 5 6 7 8 9 10 11 12 13 14 15 ...
output:
32 32 16 16 16 16 8 8 8 8 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 2 1
result:
wrong answer 28th numbers differ - expected: '2', found: '4'