Přidat a3/program.c

a3/program.c

@@ -0,0 +1,74 @@
+#include <stdio.h>
+
+int main() {
+    int n;
+    if (scanf("%d", &n) != 1 || n <= 0) {
+        puts("Nespravny vstup");
+        return 1;
+    }
+
+    char buf[100];
+    fgets(buf, 100, stdin);
+
+    char names[1000][100];
+    int count = 0;
+
+    while (fgets(buf, 100, stdin)) {
+        int len = 0;
+        while (buf[len]) len++;
+        while (len > 0 && (buf[len - 1] == '\n' || buf[len - 1] == '\r'))
+            buf[--len] = '\0';
+        if (len == 0) break;
+        if (count < 1000) {
+            int i = 0;
+            while ((names[count][i] = buf[i])) i++;
+            count++;
+        }
+    }
+
+    if (count == 0) {
+        puts("Ziadne prihlasky");
+        return 1;
+    }
+
+    char tmp[100];
+    for (int i = 0; i < count - 1; i++)
+        for (int j = i + 1; j < count; j++) {
+            int k = 0;
+            while (names[i][k] && names[i][k] == names[j][k]) k++;
+            if (names[i][k] - names[j][k] > 0) {
+                int t = 0;
+                while ((tmp[t] = names[i][t])) t++;
+                t = 0;
+                while ((names[i][t] = names[j][t])) t++;
+                t = 0;
+                while ((names[j][t] = tmp[t])) t++;
+            }
+        }
+
+    int unique = 1;
+    for (int i = 1; i < count; i++) {
+        int k = 0;
+        while (names[i][k] && names[i][k] == names[unique - 1][k]) k++;
+        if (names[i][k] != names[unique - 1][k]) {
+            int t = 0;
+            while ((names[unique][t] = names[i][t])) t++;
+            unique++;
+        }
+    }
+    count = unique;
+
+    int accepted = (n < count) ? n : count;
+
+    puts("Prijati studenti:");
+    for (int i = 0; i < accepted; i++)
+        puts(names[i]);
+
+    if (accepted < count) {
+        puts("Neprijati studenti:");
+        for (int i = accepted; i < count; i++)
+            puts(names[i]);
+    }
+
+    return 0;
+}