Progress on early subsumption

Signed-off-by: gothictomato <gothictomato@pm.me>

ncnf.h

@@ -0,0 +1,25 @@
+#pragma once
+#include "types.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#define CHECK(X, Y) if (X == NULL) { \
+    printf(Y);                       \
+    return NULL;                     \
+}
+
+typedef struct {
+    u32 cnts[2];    // { varcnt, clausecnt }
+    u32* clausedat; // { ind, len, jval }
+    u32* variables;
+    u8* parities;
+} cnf;
+
+cnf* readDIMACS(char* path);
+
+void printcnf(cnf* c);
+
+void sortlastnum(cnf* c);
+
+void freecnf(cnf* c);