제출 #20472

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20472		Lower Boundary (#35)	채점 시스템 (OJUZ11_judge)	C++98	0 / 100	1000 ms	2024 KiB

judge

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
using namespace std;

struct BigInteger {
	string integer;
	BigInteger(string _integer) : integer(_integer) {};
};

BigInteger operator+(BigInteger a, BigInteger b) {
	vector<int> aList, bList, resultList;
	for (int i = a.integer.size() - 1; i >= 0; i--) aList.push_back(a.integer[i] - '0');
	for (int i = b.integer.size() - 1; i >= 0; i--) bList.push_back(b.integer[i] - '0');
	int maxDigit = max(a.integer.size(), b.integer.size()) + 1;
	for (int i = 0; i < maxDigit - a.integer.size(); i++) aList.push_back(0);
	for (int i = 0; i < maxDigit - b.integer.size(); i++) bList.push_back(0);
	for (int i = 0; i < maxDigit; i++) resultList.push_back(0);
	for (int i = 0; i < maxDigit - 1; i++) {
		resultList[i] += (aList[i] + bList[i]);
		resultList[i + 1] += resultList[i] / 10;
		resultList[i] %= 10;
	}
	while (resultList.back() == 0 && resultList.size() != 1) resultList.pop_back();
	string result = "";
	for (int i = resultList.size() - 1; i >= 0; i--) {
		result += (resultList[i] + '0');
	}
	return BigInteger(result);
}
bool operator<(BigInteger a, BigInteger b) {
	if (a.integer.size() < b.integer.size()) return true;
	else if (a.integer.size() > b.integer.size()) return false;
	else return a.integer < b.integer;
}
bool operator==(BigInteger a, BigInteger b) {
	return a.integer == b.integer;
}
int main() {
	int tc;
	cin >> tc;

	while (tc--) {
		string a, b, c;
		cin >> a >> b;
		int result = (b.size() - a.size() - 1);
		for (int i = 0; i < b.size(); i++) c += '0';
		for (int i = 1; i < 10; i++) {
			c[0] = i + '0';
			if (BigInteger(c) + BigInteger(a) < BigInteger(b) || BigInteger(c) + BigInteger(a) == BigInteger(b)) {
				result++;
				break;
			}
		}
		if (result < 0) cout << 0 << endl;
		else cout << result << endl;
	}
}

컴파일 시 표준 에러 (stderr) 메시지

judge.cpp: In function 'BigInteger operator+(BigInteger, BigInteger)':
judge.cpp:17:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < maxDigit - a.integer.size(); i++) aList.push_back(0);
                    ^
judge.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < maxDigit - b.integer.size(); i++) bList.push_back(0);
                    ^
judge.cpp: In function 'int main()':
judge.cpp:48:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < b.size(); i++) c += '0';
                     ^

• Subtask 1: 0 / 31
• Subtask 2: 0 / 47
• Subtask 3: 0 / 22