結果
| 問題 |
No.297 カードの数式
|
| コンテスト | |
| ユーザー |
uafr_cs
|
| 提出日時 | 2015-11-06 23:01:32 |
| 言語 | Java (openjdk 23) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,893 bytes |
| コンパイル時間 | 2,471 ms |
| コンパイル使用メモリ | 87,384 KB |
| 実行使用メモリ | 63,640 KB |
| 最終ジャッジ日時 | 2024-09-13 13:29:21 |
| 合計ジャッジ時間 | 5,774 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 1 TLE * 1 -- * 21 |
ソースコード
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;
public class Main {
public static long min = Long.MAX_VALUE;
public static long max = Long.MIN_VALUE;
public static long estimate_max(long total, long sign, long current, final int n_count, int[] numbers, int o_count, int[] ops){
if(sign > 0 || ops[0] > 0){
if(sign < 0 && ops[0] > 0){
total += sign * current;
sign = 1;
current = 0;
o_count--;
}
for(int rest = n_count - o_count, i = 9; i >= 0; i--){
final int times = Math.min(numbers[i], rest);
rest -= times;
for(int j = 0; j < times; j++){
current *= 10;
current += i;
}
for(int j = 0; j < numbers[i] - times; j++){
current += i;
}
}
return total + sign * current;
}else{
for(int rest = n_count - o_count, i = 0; i < 10; i++){
final int times = Math.min(numbers[i], rest);
rest -= times;
for(int j = 0; j < times; j++){
current *= 10;
current += i;
}
for(int j = 0; j < numbers[i] - times; j++){
current += i;
}
}
return total + sign * current;
}
}
public static long estimate_min(long total, long sign, long current, final int n_count, int[] numbers, int o_count, int[] ops){
if(sign < 0 || ops[1] > 0){
if(sign > 0 && ops[1] > 0){
total += sign * current;
sign = -1;
current = 0;
o_count--;
}
for(int rest = n_count - o_count, i = 9; i >= 0; i--){
final int times = Math.min(numbers[i], rest);
rest -= times;
for(int j = 0; j < times; j++){
current *= 10;
current += i;
}
for(int j = 0; j < numbers[i] - times; j++){
current += i;
}
}
return total + sign * current;
}else{
for(int rest = n_count - o_count, i = 0; i < 10; i++){
final int times = Math.min(numbers[i], rest);
rest -= times;
for(int j = 0; j < times; j++){
current *= 10;
current += i;
}
for(int j = 0; j < numbers[i] - times; j++){
current += i;
}
}
return total + sign * current;
}
}
public static void dfs(long total, long sign, long current, boolean first, final int n_count, int[] numbers, final int o_count, int[] ops){
if(n_count == 0 && o_count == 0){
total += current * sign;
min = Math.min(min, total);
max = Math.max(max, total);
return;
}
final long estimate_max = estimate_max(total, sign, current, n_count, numbers, o_count, ops);
final long estimate_min = estimate_min(total, sign, current, n_count, numbers, o_count, ops);
if(estimate_max < max && estimate_min > min){
return;
}
//System.out.println();
if(first || n_count > o_count){
for(int i = 0; i < 10; i++){
if(numbers[i] > 0){
numbers[i]--;
dfs(total, sign, current * 10 + i, false, n_count - 1, numbers, o_count, ops);
numbers[i]++;
}
}
}
if(!first){
if(ops[0] > 0){
ops[0]--;
dfs(total + current * sign, 1, 0, true, n_count, numbers, o_count - 1, ops);
ops[0]++;
}
if(ops[1] > 0){
ops[1]--;
dfs(total + current * sign, -1, 0, true, n_count, numbers, o_count - 1, ops);
ops[1]++;
}
}
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
final int N = sc.nextInt();
char[] inputs = new char[N];
for(int i = 0; i < N; i++){
inputs[i] = sc.next().charAt(0);
}
int n_count = 0, o_count = 0;
int[] ops = new int[2];
int[] numbers = new int[10];
for(int i = 0; i < inputs.length; i++){
switch(inputs[i]){
case '+': ops[0]++; o_count++; break;
case '-': ops[1]++; o_count++; break;
default : numbers[Character.getNumericValue(inputs[i])]++; n_count++;
}
}
dfs(0, 1, 0, true, n_count, numbers, o_count, ops);
System.out.println(max + " " + min);
}
}
uafr_cs