cv5

cv5/program.c

@@ -0,0 +1,89 @@
+#include<string.h>
+#include<stdio.h>
+#include<math.h>
+#include<stdlib.h>
+
+#define SIZE 100
+
+struct student {
+	char name[SIZE];
+	int votes;
+};
+
+
+int find_student(struct student* students,int size, const char* name){
+    for (int i = 0; i < size; i++){
+		if (strcmp(students[i].name, name) == 0) {
+			return i; //ak najde studenta
+		}
+	}
+	printf("nenaslo studenta\n"); // ak nenajde studenta
+	return -1;
+}
+
+
+int compare(const void* p1, const void* p2){
+	const struct student* s1 = (const struct student*)p1;
+	const struct student* s2 = (const struct student*)p2;
+	return strcmp(s2->name, s1->name);
+}
+	
+
+int main(){
+	
+	struct student databaza[SIZE];
+	memset(databaza, 0, SIZE*sizeof(struct student)); //inicializujem pamat, vynulujem
+	
+	int size = 0;
+
+//nacitanie jednej polozky do databazy
+	char line[SIZE];
+	memset(line,0,SIZE);
+	char* r = fgets(line,SIZE,stdin);
+	if (r == NULL){		
+}
+
+//nacitanie celeho cisla, premiena kym nepride na znak ktory nieje cislo
+	char* end = NULL;
+	int value = strtol(line,&end,10);
+	if (value == 0){
+}
+// pomocné pole
+	char name[SIZE];
+// vynulujeme
+	memset(name,0,SIZE);
+// Vypocitame zaciatok mena
+// Jedno miesto za medzerou
+	char* start_name = end + 1; //urcenie zaciatku mena
+// Velkost mena je pocet znakov do konca retazca
+// minus koniec riadka
+	int name_size = strlen(start_name) - 1; //urcenie konca mena
+	if (name_size > 0){
+// nakopirujeme
+    memcpy(name,start_name,name_size);
+// Na konci je v poli name ulozeny retazec s menom
+// bez konca riadka a s nulou na konci
+}
+else {
+printf( "nepodarilo sa nacitat meno \n");
+}
+
+//prejde vsetky polozky v databaze
+
+int id = find_student(databaza,size,name);
+if (id< 0){
+	if (size < SIZE){
+    memcpy(databaza[size].name,name,name_size);
+	databaza[size].votes = value;
+	size++;
+	}
+	else{
+	printf("databaza je plna\n");
+	}
+}
+else {
+	databaza[id].votes = value;
+}
+
+	return 0;
+}