diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -6,4 +6,6 @@ Dobrodošli na repozitoriju predmeta **Aproksimacijski in naključnostni algorit
 
 1. Uvod in osnovni modeli računanja
 2. NP, prevedbe in NP-polnost
-3. Še prevedbe, vmesni problemi, diagonalizacija
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+3. Še prevedbe, vmesni problemi, diagonalizacija
+4. Ladner, Prostorska zahtevnost (L, PSPACE)
+   
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diff --git a/p04/p04.pdf b/p04/p04.pdf
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