THMMY.gr

#include <stdio.h>

void main()
{
  int n,t1=1,t2=2,t3=3,t4=4,t5=5,t6=6,t7=7,t8=8,t9=9;
  int t,tt,ttt;
  FILE *arxeio;


  arxeio=fopen("test.txt","w");

  fprintf(arxeio,"%d %d %d\n",t1,t2,t3);
  fprintf(arxeio,"%d %d %d\n",t4,t5,t6);
  fprintf(arxeio,"%d %d %d\n",t7,t8,t9);

  fclose(arxeio);

  arxeio=fopen("test.txt","r");
  printf("Se poia grammi thes na pas?(0,1 h 2?)");
  scanf("%d",&n);

  if (n)
      fseek(arxeio,n*7-1,SEEK_SET);     // 7 bytes einai to megethos kathe grammis. To vriskeis me ftell()

  fscanf(arxeio,"%d %d %d\n",&t,&tt,&ttt);

  printf("\n%d %d %d",t,tt,ttt);

}

	earthquake = fopen("earthquake.txt", "r");

	if(earthquake==NULL) {
		printf("\nLa8os sto anoigma tou arxeiou...\n");
		return 0;
	}

	printf("\nGia poia mera 8elete anazhthsh dedomenwn? ");
	scanf("%d",&search);

	if(search==0) {
		printf("Eksodos apo to programma!\n\n");
		return 0;
	}

	while(!feof(earthquake)){
		fscanf(earthquake,"%d%c%d%c%d%c%d%c%f%c",&rd_d,&q,&rd_hr,&q,&rd_mn,&q,&rd_sc,&q,&rd_rch,&q);
		if(rd_d==search) {
			printf("%d:%d:%d : seismos %4.2f richter\n",rd_hr,rd_mn,rd_sc,rd_rch);
		}
	}

#include <stdio.h>
#include <stdlib.h>
FILE *daysnum, *earthquake;

int main(void) {

	int d, j, hr, mn, sc, rd_d, search, rd_hr, rd_mn, rd_sc;
	float rch, rd_rch;
	char q;
	struct seismos {
		int day;
		int hrs;
		int min;
		int sec;
		float richter;
	};	


	daysnum = fopen("daysnum.txt", "w");
	earthquake = fopen("earthquake.txt", "w");

	if(daysnum==NULL || earthquake==NULL) {
		printf("\nLa8os sto anoigma tou arxeiou...\n");
		return 0;
	}

	for (d=1; d<=5; d++) {
		hr=mn=sc=j=0;
		rch=0.0;
		printf("\nHmera %dh:",d);
		for(;;) {
			printf("\nEisagete thn wra tou seismou, sth morfh HH MM SS afhnontas TOULAXISTON ENA KENO anamesa: \n");
			scanf("%d %d %d", &hr, &mn, &sc);
			if(hr>=24) {
				break;
			}

			printf("Eisagete to mege8os tou seismou: ");
			scanf("%f",&rch);

			fprintf(earthquake, "%d,%d:%d:%d,%f\n",d,hr,mn,sc,rch);
			j++;
		}
		fprintf(daysnum, "%d\n",j);
	}

	fclose(daysnum);
	fclose(earthquake);

/* TELOS KATAXWRHSHS TIMWN. AKOLOU8EI TO KOMMATI THS ANAZHTHSHS */

	earthquake = fopen("earthquake.txt", "r");

	if(earthquake==NULL) {
		printf("\nLa8os sto anoigma tou arxeiou...\n");
		return 0;
	}

	printf("\nGia poia mera 8elete anazhthsh dedomenwn? ");
	scanf("%d",&search);

	if(search==0) {
		printf("Eksodos apo to programma!\n\n");
		return 0;
	}

	while(!feof(earthquake)){
		fscanf(earthquake,"%d,%d:%d:%d:%f%c",&rd_d,&rd_hr,&rd_mn,&rd_sc,&rd_rch,&q);
		if(rd_d==search) {
			printf("%d:%d:%d : seismos %4.2f richter\n",rd_hr,rd_mn,rd_sc,rd_rch);
		}
	}

	return 0;
}

while(!feof(fila)) {
	if (fseek(fila,sizeof(struct seismos),SEEK_SET)){printf("SEEK ERROR");}
	if(fread(&meres,sizeof(struct seismos),1,fila)){printf("FREAD ERROR");}
if(meres.mera==imera){
printf("\n");
printf("Tin imera %i exoume ta eksis dedomena\n",imera);
printf("Imera: %i, Ora: %i:%i:%i , Megethos: %f\n",meres.mera,meres.ora,meres.lepta,meres.deuterolepta,meres.megethos);
//cnt++;
}