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

#define SIZE 30

struct sensor {
 uint8_t day;
 uint8_t month;
 uint16_t year;
 int8_t t;
};

void cgangeIJ(struct sensor* info,int i, int j){
struct sensor temp;
    temp=info[i];
    info[i]=info[j];
    info[j]=temp;
}
//упорядочивающую его по неубыванию температуры
void SortByT(struct sensor* info,int n){
    for(int i=0; i<n; ++i)
        for(int j=i; j<n; ++j)
            if(info[i].t>=info[j].t)
                cgangeIJ(info,i,j);
}

unsigned int DateToInt(struct sensor* info){
    return info->year << 16 | info->month << 8 | info->day;
}
//упорядочивающую его по дате
void SortByDate(struct sensor* info,int n){
    for(int i=0; i<n; ++i)
        for(int j=i; j<n; ++j)
            if(DateToInt(info+i)>= DateToInt(info+j))
                cgangeIJ(info,i,j);
}

void AddRecord(struct sensor* info,int number,
uint16_t year,uint8_t month,uint8_t day,int8_t t){
    info[number].year = year;
    info[number].month = month;
    info[number].day = day;
    info[number].t = t;
}

int AddInfo(struct sensor* info){
int counter=0;
    AddRecord(info,counter++,2021,9,16,9);
    AddRecord(info,counter++,2022,9,2,-9);
    AddRecord(info,counter++,2021,1,7,8);
    AddRecord(info,counter++,2021,9,5,1);
    return counter;
}

void print(struct sensor* info,int number){
    printf("===================================\n");
    for(int i=0;i<number;i++)
        printf("%04d-%02d-%02d t=%3d\n",
        info[i].year,
        info[i].month,
        info[i].day,
        info[i].t);
}

int main(void)
{
    struct sensor info[SIZE];
    int number=AddInfo(info);
    print(info,number);
    printf("\nSort by t\n");
    SortByT(info,number);
    print(info,number);
    printf("\nSort by date\n");
    SortByDate(info,number);
    print(info,number);
    return 0;
}