浙大 PAT 甲级 1035 Password

#include<stdio.h>
#include<vector>
#include<string.h>
using namespace std;

struct R
{
    char name[11];
    char password[11];
};

vector <R> records;

int main()
{
    int M;
    scanf("%d", &M);
    for (int i = 0; i < M; i++)
    {
        char n[11];
        char p[11];
        scanf("%s %s", n, p);
        bool flag = false;
        for (int j = 0; j < strlen(p); j++)
        {
            switch (p[j])
            {
            case '1':p[j] = '@'; flag = true; break;
            case '0':p[j] = '%'; flag = true; break;
            case 'l':p[j] = 'L'; flag = true; break;
            case 'O':p[j] = 'o'; flag = true; break;
            default:
                break;
            }
        }
        if (flag)
        {
            R r;
            strcpy(r.name, n);
            strcpy(r.password, p);
            records.push_back(r);
        }
    }
    if (records.size() == 0)
    {
        if (M == 1)
        {
            printf("There is 1 account and no account is modified\n");
        }
        else
        {
            printf("There are %d accounts and no account is modified\n", M);
        }
    }
    else
    {
        printf("%d\n", records.size());
        for (int i = 0; i < records.size(); i++)
        {
            printf("%s %s\n", records[i].name, records[i].password);
        }
    }
    return 0;
}