結果
| 問題 |
No.1315 渦巻洞穴
|
| コンテスト | |
| ユーザー |
milanis48663220
|
| 提出日時 | 2020-12-12 21:15:40 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,167 bytes |
| コンパイル時間 | 1,256 ms |
| コンパイル使用メモリ | 109,460 KB |
| 最終ジャッジ日時 | 2025-01-16 22:56:46 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 72 WA * 7 |
コンパイルメッセージ
main.cpp: In function ‘int to_number(point)’:
main.cpp:61:1: warning: no return statement in function returning non-void [-Wreturn-type]
61 | }
| ^
ソースコード
#include <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <cassert>
#include <cmath>
#define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl;
#define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
using namespace std;
typedef long long ll;
struct point{
int x, y;
};
const double eps = 0.01;
int right_up(int k){ return (2*k-1)*(2*k-1)+(2*k); }
int left_up(int k){ return (2*k)*(2*k)+1; }
int left_bottom(int k){ return (2*k)*(2*k)+2*k+1; }
int right_bottom(int k){ return (2*k+1)*(2*k+1); }
int sqrt_int(int n){
return (int)(sqrt(n)+eps);
}
int to_cycle(int n){
int s = sqrt_int(n);
if(s%2 == 0) s--;
if(s*s == n){
return (s+1)/2-1;
}
return (s+3)/2-1;
}
point to_cood(int n){
int k = to_cycle(n);
int x = -1, y = -1;
if(n <= right_up(k)){
x = k, y = k-(right_up(k)-n);
}else if(n <= left_up(k)){
x = -k+(left_up(k)-n), y = k;
}else if(n <= left_bottom(k)){
x = -k, y = -k+(left_bottom(k)-n);
}else{
x = k-(right_bottom(k)-n), y = -k;
}
return (point){x, y};
}
int to_number(point p){
}
int dist(point p1, point p2){
return abs(p1.x-p2.x)+abs(p1.y-p2.y);
}
int s, t;
int x, y;
int sx, sy, tx, ty;
vector<int> vx, vy;
void go_up(){
y++;
vx.push_back(x);
vy.push_back(y);
}
void go_down(){
y--;
vx.push_back(x);
vy.push_back(y);
}
void go_left(){
x--;
vx.push_back(x);
vy.push_back(y);
}
void go_right(){
x++;
vx.push_back(x);
vy.push_back(y);
}
void solve_odd(){
while(x != tx){
if(x < tx) go_right();
else go_left();
}
while(y != ty){
if(y < ty) go_up();
else go_down();
}
int sz = vx.size();
string ans;
for(int i = 0; i < sz-1; i++){
if(i%2 == 0){
if(vx[i+1] == vx[i]+1) ans += "RLR";
if(vx[i+1] == vx[i]-1) ans += "LRL";
if(vy[i+1] == vy[i]+1) ans += "UDU";
if(vy[i+1] == vy[i]-1) ans += "DUD";
}else{
if(vx[i+1] == vx[i]+1) ans += "R";
if(vx[i+1] == vx[i]-1) ans += "L";
if(vy[i+1] == vy[i]+1) ans += "U";
if(vy[i+1] == vy[i]-1) ans += "D";
}
}
cout << 0 << endl;
cout << ans.size() << endl;
cout << ans << endl;
}
void solve_even(){
int u = s^t;
auto pu = to_cood(u);
int ux = pu.x, uy = pu.y;
while(x != ux){
if(x < ux) go_right();
else go_left();
}
while(y != uy){
if(y < uy) go_up();
else go_down();
}
while(x != tx){
if(x < tx) go_right();
else go_left();
}
while(y != ty){
if(y < ty) go_up();
else go_down();
}
int sz = vx.size();
int i = 0;
string ans;
for(int j = 0; j < sz-1; j++){
if(i%2 == 1){
if(vx[j+1] == vx[j]+1) ans += "RLR";
if(vx[j+1] == vx[j]-1) ans += "LRL";
if(vy[j+1] == vy[j]+1) ans += "UDU";
if(vy[j+1] == vy[j]-1) ans += "DUD";
}else{
if(vx[j+1] == vx[j]+1) ans += "R";
if(vx[j+1] == vx[j]-1) ans += "L";
if(vy[j+1] == vy[j]+1) ans += "U";
if(vy[j+1] == vy[j]-1) ans += "D";
}
if(vx[j+1] != ux || vy[i+1] != uy) i++;
}
cout << 0 << endl;
cout << ans.size() << endl;
cout << ans << endl;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout << setprecision(10) << fixed;
cin >> s >> t;
auto ps = to_cood(s);
auto pt = to_cood(t);
x = ps.x, y = ps.y;
sx = ps.x, sy = ps.y;
tx = pt.x, ty = pt.y;
vx.push_back(sx);
vy.push_back(sy);
if(dist(ps, pt)%2 == 0){
solve_even();
}else{
solve_odd();
}
// cout << ps.x << ' ' << ps.y << endl;
// cout << pt.x << ' ' << pt.y << endl;
}
milanis48663220