Task 3 and 5 are done

2025.05.23/dist/Kochubei_DS/a03.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "solve.h"
+
+int main(int argc, char** argv)
+{
+    int p=0;
+    int res=0;
+    double t=0;
+    char* name;
+    node* N;
+    int status=0;
+    if (argc!=3)
+    {
+        printf("Usage: %s p name\n", argv[0]);
+        return -1;
+    }
+    if (sscanf(argv[1], "%d", &p)!=1)
+    {
+        printf("Usage: %s p name\n", argv[0]);
+        return -1;
+    }
+    name=argv[2];
+    status=read_node(&N, name);
+    if (status==-1)
+    {
+        printf("Cannot open file\n");
+        delete_node(N);
+        return -1;
+    }
+    else if (status==-2)
+    {
+        printf("Cannot read file\n");
+        delete_node(N);
+        return -2;
+    }
+    else if (status==3)
+    {
+        printf("Cannot allocate memory\n");
+        delete_node(N);
+        return -2;
+    }
+    print_node(p, N);
+    t=clock();
+    res=solve3(N);
+    t=(clock()-t)/CLOCKS_PER_SEC;
+    printf ("%s : Task = %d Result = %d Elapsed = %.2f\n", argv[0], 3, res, t);
+    delete_node(N);
+    return 0;
+}