結果
| 問題 |
No.886 Direct
|
| コンテスト | |
| ユーザー |
ei1333333
|
| 提出日時 | 2019-09-13 22:13:06 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 5,395 bytes |
| コンパイル時間 | 2,493 ms |
| コンパイル使用メモリ | 194,832 KB |
| 最終ジャッジ日時 | 2025-01-07 17:51:20 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 TLE * 1 |
| other | AC * 17 TLE * 15 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
using int64 = long long;
const int mod = (int) (1e9 + 7);
const int64 infll = (1LL << 62) - 1;
const int inf = (1 << 30) - 1;
struct IoSetup {
IoSetup() {
cin.tie(nullptr);
ios::sync_with_stdio(false);
cout << fixed << setprecision(10);
cerr << fixed << setprecision(10);
}
} iosetup;
template< typename T1, typename T2 >
ostream &operator<<(ostream &os, const pair< T1, T2 > &p) {
os << p.first << " " << p.second;
return os;
}
template< typename T1, typename T2 >
istream &operator>>(istream &is, pair< T1, T2 > &p) {
is >> p.first >> p.second;
return is;
}
template< typename T >
ostream &operator<<(ostream &os, const vector< T > &v) {
for(int i = 0; i < (int) v.size(); i++) {
os << v[i] << (i + 1 != v.size() ? " " : "");
}
return os;
}
template< typename T >
istream &operator>>(istream &is, vector< T > &v) {
for(T &in : v) is >> in;
return is;
}
template< typename T1, typename T2 >
inline bool chmax(T1 &a, T2 b) {
return a < b && (a = b, true);
}
template< typename T1, typename T2 >
inline bool chmin(T1 &a, T2 b) {
return a > b && (a = b, true);
}
template< typename T = int64 >
vector< T > make_v(size_t a) {
return vector< T >(a);
}
template< typename T, typename... Ts >
auto make_v(size_t a, Ts... ts) {
return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));
}
template< typename T, typename V >
typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {
t = v;
}
template< typename T, typename V >
typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {
for(auto &e : t) fill_v(e, v);
}
template< typename F >
struct FixPoint : F {
FixPoint(F &&f) : F(forward< F >(f)) {}
template< typename... Args >
decltype(auto) operator()(Args &&... args) const {
return F::operator()(*this, forward< Args >(args)...);
}
};
template< typename F >
inline decltype(auto) MFP(F &&f) {
return FixPoint< F >{forward< F >(f)};
}
using Point = pair< int, int >;
Point operator-(const Point &a, const Point &b) {
return {a.first - b.first, a.second - b.second};
}
int cross(const Point &a, const Point &b) {
return a.first * b.second + a.second * b.first;
}
int dot(const Point &a, const Point &b) {
return a.first * b.first + a.second * b.second;
}
int norm(const Point &a) {
return a.first * a.first + a.second * a.second;
}
int ccw(const Point &a, Point b, Point c) {
b = b - a, c = c - a;
if(cross(b, c) > 0) return true; // "COUNTER_CLOCKWISE"
if(cross(b, c) < 0) return true; // "CLOCKWISE"
if(dot(b, c) < 0) return true; // "ONLINE_BACK"
if(norm(b) <= norm(c)) return true; // "ONLINE_FRONT"
return false;
}
template< int mod >
struct ModInt {
int x;
ModInt() : x(0) {}
ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
ModInt &operator+=(const ModInt &p) {
if((x += p.x) >= mod) x -= mod;
return *this;
}
ModInt &operator-=(const ModInt &p) {
if((x += mod - p.x) >= mod) x -= mod;
return *this;
}
ModInt &operator*=(const ModInt &p) {
x = (int) (1LL * x * p.x % mod);
return *this;
}
ModInt &operator/=(const ModInt &p) {
*this *= p.inverse();
return *this;
}
ModInt operator-() const { return ModInt(-x); }
ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }
ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }
ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }
ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }
bool operator==(const ModInt &p) const { return x == p.x; }
bool operator!=(const ModInt &p) const { return x != p.x; }
ModInt inverse() const {
int a = x, b = mod, u = 1, v = 0, t;
while(b > 0) {
t = a / b;
swap(a -= t * b, b);
swap(u -= t * v, v);
}
return ModInt(u);
}
ModInt pow(int64_t n) const {
ModInt ret(1), mul(x);
while(n > 0) {
if(n & 1) ret *= mul;
mul *= mul;
n >>= 1;
}
return ret;
}
friend ostream &operator<<(ostream &os, const ModInt &p) {
return os << p.x;
}
friend istream &operator>>(istream &is, ModInt &a) {
int64_t t;
is >> t;
a = ModInt< mod >(t);
return (is);
}
};
using modint = ModInt< mod >;
int main() {
/*
for(int H = 1; H <= 10; H++) {
for(int W = 1; W <= 10; W++) {
int ret = 0;
for(int i = 0; i < H; i++) {
for(int j = 0; j < W; j++) {
for(int k = 0; k < H; k++) {
for(int l = 0; l < W; l++) {
if(i == k && j == l) continue;
bool flag = true;
for(int m = 0; m < H; m++) {
for(int n = 0; n < W; n++) {
if(i == m && j == n) continue;
if(k == m && l == n) continue;
flag &= ccw(Point(i, j), Point(k, l), Point(m, n));
}
}
ret += flag;
};
}
}
}
cout << ret / 2 << " ";
}
cout << endl;
}
*/
int H, W;
cin >> H >> W;
--H, --W;
modint ret = 0;
for(int i = 1; i <= H; i++) {
for(int j = 1; j <= W; j++) {
if(__gcd(i, j) == 1) {
ret += 1LL * (H - i + 1) * (W - j + 1);
}
}
}
cout << ret * 2 + 2 * H * W + H + W << endl;
}
ei1333333