c1

du5/program.c

@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.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)){
+			return i;
+		}
+	}
+    return -1;
+}
+
+int compare_votes(const void * a, const void * b){
+	if(((struct student*)a)->votes < ((struct student*)b)->votes)
+		return 1;
+	if(((struct student*)a)->votes == ((struct student*)b)->votes)
+		return strcmp(((struct student*)a)->name, ((struct student*)b)->name);
+	if(((struct student*)a)->votes > ((struct student*)b)->votes)
+		return -1;
+}
+
+
+int main(int argc, char const *argv[]){
+	struct student databaza[SIZE];
+	memset(databaza,0,SIZE*sizeof(struct student));
+	int size = 0;
+
+	while(size!=SIZE){
+		char line[SIZE];
+		memset(line,0,SIZE);
+		char* r = fgets(line,SIZE,stdin);
+		if (r == NULL){
+			break;
+		}
+
+		char* end = NULL;
+		int value = strtol(line,&end,10);
+		if (value == 0){
+		    break;
+		}
+		char tmp[SIZE];
+		memset(tmp, 0, SIZE);
+		memcpy(tmp, end+1, strlen(end+1)-1);
+		int idx = find_student(databaza, size, tmp);
+		if(idx!=-1){
+			memcpy(databaza[idx].name, tmp, strlen(tmp));
+			databaza[idx].votes += value;
+		}
+		else{
+		memcpy(databaza[size].name, tmp, strlen(tmp));
+		databaza[size].votes = value;
+		size++;
+		}
+	}
+
+	qsort(databaza, size, sizeof(struct student), compare_votes);
+
+	printf("Vysledky:\n");
+	for(int i=0; i<size; i++){
+		printf("%d %s\n", databaza[i].votes, databaza[i].name);
+	}
+	return 0;
+}