QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#271746#6750. Calculatemobbb#WA 15ms3840kbC++171.1kb2023-12-02 14:23:202023-12-02 14:23:23

Judging History

你现在查看的是最新测评结果

  • [2023-12-02 14:23:23]
  • 评测
  • 测评结果:WA
  • 用时:15ms
  • 内存:3840kb
  • [2023-12-02 14:23:20]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define ll long long

string s;

int calc(int l,int r){
	for (int i = r,j  = 0;i >= l;i--){
		if (s[i] == '(') j++;
		if (s[i] == ')') j--;
		if (j == 0 && s[i] == '+') return calc(l,i - 1) + calc(i + 1,r);
		if (j == 0 && s[i] == '-') return calc(l,i - 1) - calc(i + 1,r);
	}
	if (s[l] == '(' && s[r] == ')') return calc(l + 1,r - 1);
	int ans = 0;
	for (int i = l;i <= r;i++) ans = ans * 10 + s[i] - '0';
	return ans;
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	//string s;
	cin >> s;
	auto n = s.size();

	vector<int> q;
	
	for (int i = 0;i < n;i++){
		if (s[i] == '?') q.push_back(i);
	}
	//cout << q.size() << endl;
	int res = 0;
	for (int i = 0;i <= 9;i++){
		for (int j = 0;j <= 9;j++){
			if (q.size() == 0){
				res = max(res,calc(0,n - 1));
			}
			else if (q.size() == 1){	
				s[q[0]] = '0' + i;
				res = max(res,calc(0,n - 1));
			}else if (q.size() == 2){
				s[q[0]] = '0' + i;
				s[q[1]] = '0' + j;
				res = max(res,calc(0,n - 1));
				//cout << s[i] << endl;
			}
		}
	}

	cout << res << endl;

	return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3672kb

input:

?+?

output:

18

result:

ok 1 number(s): "18"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3536kb

input:

(?+9)-(?+1)

output:

17

result:

ok 1 number(s): "17"

Test #3:

score: -100
Wrong Answer
time: 15ms
memory: 3840kb

input:

((9)-(((8)-(2))+(((1+(1))-(1+((2)+2+2)))+(5)+4))+(((7)-((9)+3))-((8)-(0-(2))+0))+((6)-(6+(((4)-(9))-(8-((9)+(1))+(0)))+(2-((9)+7))-(1)))-((((7)+(1))-((3)+(3)))-((2)-((6)-((3)-(8)))))+(2+0-((6)-(1))))-((((3)-(((0)+((4)-(9))+((6+8)+4)+(5)-(4-(3)-(8)))-((8)-(2))))+(((2)-(4))+(6)-(2))+(6-(1))-((2+9)-(3+...

output:

0

result:

wrong answer 1st numbers differ - expected: '-63', found: '0'