結果
| 問題 |
No.793 うし数列 2
|
| コンテスト | |
| ユーザー |
tonegawa
|
| 提出日時 | 2020-08-15 17:22:52 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 3,261 bytes |
| コンパイル時間 | 2,439 ms |
| コンパイル使用メモリ | 130,492 KB |
| 最終ジャッジ日時 | 2025-01-13 01:34:27 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 20 RE * 1 |
コンパイルメッセージ
main.cpp: In function ‘void get(std::vector<long long int>&)’:
main.cpp:25:38: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
25 | void get(vll &a){re(i,a.size()) scanf("%lld",&a[i]);}
| ~~~~~^~~~~~~~~~~~~~
main.cpp: In function ‘void get(std::vector<std::vector<long long int> >&)’:
main.cpp:26:56: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
26 | void get(vvl &a){re(i,a.size()) re(j,a[0].size()) scanf("%lld",&a[i][j]);}
| ~~~~~^~~~~~~~~~~~~~~~~
ソースコード
#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <deque>
#include <algorithm>
#include <set>
#include <map>
#include <bitset>
#include <cmath>
#include <functional>
#include <iomanip>
#define vll vector<ll>
#define vvvl vector<vvl>
#define vvl vector<vector<ll>>
#define VV(a, b, c, d) vector<vector<d>>(a, vector<d>(b, c))
#define VVV(a, b, c, d) vector<vvl>(a, vvl(b, vll (c, d)));
#define re(c, b) for(ll c=0;c<b;c++)
#define rep(a,b,c) for(ll a=b;a<c;a++)
#define all(obj) (obj).begin(), (obj).end()
typedef long long int ll;
typedef long double ld;
using namespace std;
void get(vll &a){re(i,a.size()) scanf("%lld",&a[i]);}
void get(vvl &a){re(i,a.size()) re(j,a[0].size()) scanf("%lld",&a[i][j]);}
void print(vll &a){re(i,a.size()) cout<<a[i]<<(i==a.size()-1?"\n":" ");}
void print(vvl &a){re(i,a.size()) re(j,a[0].size())cout<<a[i][j]<<(j==a[0].size()-1?"\n":" ");}
// matrix<集合> (集合, 加法における単位元, 加算, 乗算)
template<typename T>
struct matrix{
function<T(T, T)> f, g;
vector<vector<T>> mat;
T unit;
matrix(vector<vector<T>> v, T UNIT, function<T(T, T)> add_func,
function<T(T, T)> multi_func):f(add_func), g(multi_func), unit(UNIT){
mat = v;
}
matrix<T> t(){
vector<vector<T>> ret(mat[0].size(), vector<T>(mat.size()));
re(i, mat[0].size()) re(j, mat.size()) ret[i][j] = mat[j][i];
return matrix<T>(ret, f, g);
}
matrix<T> operator * (matrix<T> B){
vector<vector<T>> ret(mat.size(), vector<T>(B.mat[0].size(), unit));
if(mat[0].size()!=B.mat.size()){
std::cout << "matrix operator " << "*" << " error" << '\n';
return matrix<T>(ret, unit, f, g);
}
re(i, mat.size()){
re(j, B.mat[0].size()){
re(k, mat[0].size()){
ret[i][j] = f(ret[i][j], g(mat[i][k], B.mat[k][j]));
}
}
}
return matrix<T>(ret, unit, f, g);
}
matrix<T> operator * (ll num){
vector<vector<T>> ret = mat;
re(i, mat.size()) re(j, mat[0].size()) ret[i][j] *= num;
return matrix<T>(ret, unit, f, g);
}
matrix<T> operator + (matrix<T> B){
vector<vector<T>> ret = mat;
if(mat.size()!=B.mat.size()||mat[0].size()!=B.mat[0].size()){
std::cout << "matrix operator " << "+" << " error" << '\n';
return matrix<T>(ret, unit, f, g);
}
re(i, mat.size()) re(j, mat[0].size()) ret[i][j] = f(mat[i][j], B.mat[i][j]);
return matrix<T>(ret, unit, f, g);
}
matrix<T> operator ^ (ll num){
matrix<T> ret(vector<vector<T>> (0, vector<T>(0)), unit, f, g);
if(mat.size()!=mat[0].size()){
std::cout << "matrix operator " << "^" << " error" << '\n';
return ret;
}
matrix<T> tmp(mat, unit, f, g);
bool flag = false;
while(num>0){
if(num%2){
if(flag) ret = ret * tmp;
else ret.mat = tmp.mat, flag = true;
}
num/=2, tmp = tmp * tmp;
}
return ret;
}
vector<T> & operator [](int n){
return mat[n];
}
};
#define P 1000000007
ll ad(ll a, ll b){return (a+b)%P;}
ll ml(ll a, ll b){return (a*b)%P;}
int main(int argc, char const *argv[]) {
ll n;std::cin >> n;
matrix<ll> A({{13}, {1}}, 0, ad, ml);
matrix<ll> B({{10, 3}, {0, 1}}, 0, ad, ml);
A = (B^(n-1))*A;
std::cout << A[0][0] << '\n';
}
tonegawa