consolidate all repos to one for archive

2025-01-28 13:46:42 +01:00
commit a6610fbc7a
5350 changed files with 2705721 additions and 0 deletions
--- a/semester_2/osnove_algoritmov/naloga_5/main.cpp
+++ b/semester_2/osnove_algoritmov/naloga_5/main.cpp
@@ -0,0 +1,139 @@
+#include <iostream>
+#include <fstream>
+
+
+void FLOYD_WARSHALL(int **&C, int **&D, int **&PI, int st_vozlisc) {
+
+    D = new int *[st_vozlisc];
+    PI = new int *[st_vozlisc];
+
+    for (int i = 0; i < st_vozlisc; i++) {
+        PI[i] = new int[st_vozlisc];
+        D[i] = new int[st_vozlisc];
+    }
+
+    for (int i = 0; i < st_vozlisc; i++) {
+        for (int j = 0; j < st_vozlisc; j++) {
+            D[i][j] = C[i][j];
+            if (i != j && C[i][j] != INT16_MAX) { //inf
+                PI[i][j] = i;
+            } else {
+                PI[i][j] = INT16_MAX; //nill
+            }
+        }
+    }
+
+
+    for (int k = 0; k < st_vozlisc; k++) {
+        for (int i = 0; i < st_vozlisc; i++) {
+            for (int j = 0; j < st_vozlisc; j++) {
+                if (D[i][j] > D[i][k] + D[k][j]) {
+                    D[i][j] = D[i][k] + D[k][j];
+                    PI[i][j] = PI[k][j];
+                }
+            }
+        }
+    }
+
+
+}
+
+void beri(int **&C, int &st_vozlisc) {
+    int st_povezav;
+    std::ifstream f("graf3.txt");
+    f >> st_vozlisc;
+    f >> st_povezav;
+    int v1, v2, cena;
+
+    C = new int *[st_vozlisc];
+
+    for (int i = 0; i < st_vozlisc; i++) {
+        C[i] = new int[st_vozlisc];
+    }
+
+    for (int i = 0; i < st_vozlisc; i++) {
+        for (int j = 0; j < st_vozlisc; j++) {
+            if (i == j) {
+                C[i][j] = 0;
+            } else {
+                C[i][j] = INT16_MAX; //inf
+
+            }
+        }
+    }
+
+    for (int i = 0; i < st_povezav; i++) {
+        f >> v1 >> v2 >> cena;
+        C[v1 - 1][v2 - 1] = cena;
+    }
+    std::cout << "Vozlisca: " << st_vozlisc << " Povezave: " << st_povezav << "\n";
+}
+
+void izpisPoti(int **&PI, int s, int g) {
+    if (s == g) {
+        std::cout << s << " ";
+    } else {
+        if (PI[s][g] == INT16_MAX) { //inf
+            std::cout << "med " << s << " in " << g << " ni poti";
+        } else {
+            izpisPoti(PI, s, PI[s][g]);
+            std::cout << g << " ";
+        }
+    }
+}
+
+void menu() {
+    std::cout << "Dijkstrov algoritem - izbira:\n"
+                 "1 Nalozi graf\n"
+                 "2 Zagon algoritma\n"
+                 "3 Izpis najkrajse poti\n"
+                 "0 Konec\n\n"
+                 "Vasa izbira: ";
+}
+
+int main() {
+
+    std::cout << "Hello, World!" << std::endl;
+    int **C;
+    int **D;
+    int **PI;
+    int st_vozlisc = 0;
+    bool runing = true;
+    int condition;
+    int s, g;
+    bool func = false;
+    while (runing) {
+        menu();
+        std::cin >> condition;
+        switch (condition) {
+            case 1:
+                beri(C, st_vozlisc);
+                break;
+            case 2:
+                FLOYD_WARSHALL(C, D, PI, st_vozlisc);
+                func = true;
+                break;
+            case 3:
+                if (func) {
+                    do {
+                        std::cout << "Izberi s:";
+                        std::cin >> s;
+                    } while (s > st_vozlisc);
+                    do {
+                        std::cout << "Izberi g:";
+                        std::cin >> g;
+                    }while(g > st_vozlisc);
+                    std::cout << "Pot: ";
+                    izpisPoti(PI, s, g);
+                    std::cout  << "\n Cena: " << D[s][g];
+                    std::cout << "\n";
+                }
+                break;
+            case 0:
+                runing = false;
+                break;
+        }
+    }
+
+    return 0;
+}