题解 | #简单错误记录#

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>

typedef struct{
    char filename[17];
    int line;
    uint8_t count;
}record_t;

//传入指向文件名的最后一个字符的指针
char* _get_filename_start(char * str)
{
    char *p = NULL;
    int i = 0;
    for (i = 1; i < 16; i++) {
        if (*(str-i) == '\\') {
            break;
        }
    }

    return str-i+1;
}
//10:42-11.13 半小时
int main() {
    int num = 0;
    char file_path[101] = {0};
    char line_buf[101] = {0};
    record_t rec_list[100];
    memset(rec_list, 0, sizeof(rec_list));

    while (fgets(line_buf, sizeof(line_buf), stdin) != NULL) {
        line_buf[strcspn(line_buf, "\r")] = 0;
        line_buf[strcspn(line_buf, "\n")] = 0;
        //printf("line_buf:%s\n", line_buf);

        //获取输出
        char *p = strchr(line_buf, ' ');
        int line = atoi(p+1);
        *p = 0;
        char *filename = _get_filename_start(p-1);
        //printf("filename:%s\n", filename);
        //printf("line:%d\n", line);

        //保存输入，需要判断有没有出现过
        int i = 0;
        char skip = 0;
        for (i = 0; i < num; i++) {
            if (strcmp(rec_list[i].filename, filename) == 0
            && rec_list[i].line == line) {
                rec_list[i].count++;
                skip = 1;
                break;
            }
        }
        if (skip) {
            continue;
        }

        //保存未出现的记录
        strncpy(rec_list[num].filename, filename, strlen(filename));
        rec_list[num].line = line;
        rec_list[num].count++;
        num++;
    }

    //输出后面8条
    int i = num >= 8 ? 8:num;
    for (; i > 0; i--) {
        printf("%s %d %d\n", 
            rec_list[num-i].filename, rec_list[num-i].line, rec_list[num-i].count);
    }

    return 0;
}

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