結果

問題 No.2328 Build Walls
ユーザー Kinoko_Sokora
提出日時 2023-05-28 15:45:26
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 170 ms / 3,000 ms
コード長 4,680 bytes
コンパイル時間 1,352 ms
コンパイル使用メモリ 110,740 KB
実行使用メモリ 13,696 KB
最終ジャッジ日時 2024-12-27 08:30:39
合計ジャッジ時間 4,583 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 34
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
#include<cstdio>
#include<string>
#include<cmath>
#include<algorithm>
#include<map>
#include<vector>
#include<stack>
#include<iomanip>
#include<queue>
#include<set>
#include<functional>
#include<tuple>
#include<bitset>
#include<cassert>
#include<cstdint>
#include<complex>
using namespace std;
bool printb(bool f) {
if (f)printf("Yes\n");
else printf("No\n");
return f;
}
template<class T>
void prt(T t, string sep = "\n") { cout << t << sep; return; }
template<class T>
void printl(vector<T> a, string sep = " ") {
for (int i = 0; i < a.size(); i++) {
cout << a[i] << sep;
}
cout << "\n";
return;
}
#define all(a) a.begin(),a.end()
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using llong = long long;
using pii = pair<int, int>;
using pll = pair<llong, llong>;
using pli = pair<llong, int>;
using pil = pair<int, llong>;
template<typename T> using vec2 = vector<vector<T>>;
template<typename T> inline bool chmin(T& a, T b) { return (a > b) ? (a = b, true) : false; }
template<typename T> inline bool chmax(T& a, T b) { return (a < b) ? (a = b, true) : false; }
bool bitIn(llong a, int b) { return ((a >> b) & 1); }
int bitCnt(llong a) {
int re = 0;
while (a > 0) {
if (a & 1)re++;
a >>= 1;
}
return re;
}
llong powL(llong n, llong i) {
llong re = 1;
while (i >= 1) {
if (i & 1) re *= n;
n *= n;
i >>= 1;
}
return re;
}
llong powL_M(llong n, llong i, llong m) {
llong re = 1;
while (i >= 1) {
if (i & 1) {
re *= n;
re %= m;
}
n *= n;
n %= m;
i >>= 1;
}
return re;
}
struct point {
llong x = 0, y = 0;
};
//lr
template<typename T>
T sum_num(T l, T r) {
if (((l + r) & 1) == 0) {
return (l + r) / 2 * (l - r + 1);
}
else {
return (l - r + 1) / 2 * (l + r);
}
}
//int dx[4] = { 0,1,0,-1 }, dy[4] = { 1,0,-1,0 };
struct edge {
int to, co;
};
static const double pi = 3.14159265358979;
/*
modint
mod使()
extGCD(),GCD()
*/
/*
template <class T>
T extGCD(T a, T b, T& x, T& y) {
if (b == 0) {
x = 1;
y = 0;
return a;
}
T gcd = extGCD(b, a % b, y, x);
y -= a / b * x;
return gcd;
}
template <class T>
T GCD(T a, T b) {
T x, y;
return extGCD(a, b, x, y);
}
static const int mod = 1e9 + 7; //
class modint {
public:
long long x;
modint(long long x = 0) :x((x% mod + mod) % mod) {}
modint operator-() const {
return (-x);
}
modint& operator+=(const modint& a) {
if ((x += a.x) >= mod)x -= mod;
return *this;
}
modint& operator-=(const modint& a) {
if ((x += mod - a.x) >= mod) x -= mod;
return *this;
}
modint& operator*=(const modint& a) {
(x *= a.x) %= mod;
return *this;
}
modint operator+(const modint& a) const {
modint res(*this);
return res += a;
}
modint operator-(const modint& a) const {
modint res(*this);
return res -= a;
}
modint operator*(const modint& a) const {
modint res(*this);
return res *= a;
}
modint inv() const {
long long y, c;
extGCD(x, (long long)mod, y, c);
return y;
}
modint& operator/=(const modint& a) {
return (*this) *= a.inv();
}
modint operator/ (const modint& a) const {
modint res(*this);
return res /= a;
}
friend ostream& operator<<(ostream& os, const modint& a) {
os << a.x;
return os;
}
};
//pow(a , n) modintanmod
template<class T>
modint powM(modint a, T n) {
modint re(1);
while (n > 0) {
if (n & 1)re *= a;
a *= a;
n >>= 1;
}
return re;
}
//*/
int main() {
int h, w;
cin >> h >> w;
vec2<llong> co(h - 2, vector<llong>(w + 2));
rep(i, h - 2) {
co[i][0] = 0;
rep(j, w) {
scanf("%lld", &co[i][j + 1]);
if (co[i][j + 1] == -1)co[i][j + 1] = 1e18;
}
co[i][w + 1] = 0;
}
vec2<llong> dis(h - 2, vector<llong>(w + 2, 1e18));
dis[0][0] = 0;
using T = tuple<llong, int, int>;
priority_queue<T, vector<T>, greater<T>> q;
q.emplace(0, 0, 0);
int dx[8] = { -1,-1,0,1,1,1,0,-1 }, dy[8] = { 0,-1,-1,-1,0,1,1,1 };
while (!q.empty()) {
auto i = q.top();
q.pop();
auto d = get<0>(i);
auto x = get<1>(i), y = get<2>(i);
if (dis[x][y] < d)continue;
//cout << x << " " << y << " " << d << "\n";
rep(k, 8) {
int nx = x + dx[k], ny = y + dy[k];
if (nx < 0 || ny < 0)continue;
if (nx >= h - 2 || ny >= w + 2)continue;
//cout << " " << nx << " " << ny << "\n";
if (chmin(dis[nx][ny], d + co[nx][ny])) {
q.emplace(d + co[nx][ny], nx, ny);
}
}
}
//for (auto i : dis)printl(i);
if (dis[h - 3][w + 1] == 1e18)prt(-1);
else prt(dis[h - 3][w + 1]);
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0