题解 | #简单错误记录#

为错误记录创建一个类Record，用来记录每一条错误记录，包含名称、数目统计、代码行数信息，使用vector记录错误信息，输出最后8条即可。

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

class Record {
public:
    Record(string addr, int num) {
        this->name = addr.substr(addr.rfind('\\') + 1);
        if (this->name.length() > 16) {
            this->name = this->name.substr(this->name.size() - 16);
        }
        this->num = num;
        count = 1;
    }
    string getName() const {
        return name;
    }
    int getNum() const {
        return num;
    }
    int getCount() const {
        return count;
    }
    void add() {
        count++;
    }

private:
    string name;
    int num;
    int count;
};

bool isHave(vector<Record> & records, string addr, int num) {
    addr = addr.substr(addr.rfind('\\') + 1);
    if (addr.length() > 16) {
        addr = addr.substr(addr.size() - 16);
    }
    for (Record & record : records) {
        if (record.getName() == addr && record.getNum() == num) {
            record.add();
            return true;
        }
    }
    return false;
}

int main() {
    string s;
    int num;
    vector<Record> records;
    while (cin >> s >> num) {
        if (!isHave(records, s, num)) {
            records.push_back(Record(s, num));
        }
    }
    int start = (int)records.size() - 8 > 0 ? (int)records.size() - 8 : 0;
    for (int i = start; i < records.size(); i++) {
        cout << records.at(i).getName() << ' ' << records.at(i).getNum() << ' ' << records.at(i).getCount() << endl;
    }
    return 0;
}
// 64 位输出请用 printf("%lld")