diff --git a/main.c b/main.c
new file mode 100644
index 0000000..09956db
--- /dev/null
+++ b/main.c
@@ -0,0 +1,166 @@
+//
+//  main.c
+//  DNA
+//
+//  Created by Eric on 15-9-12.
+//  Copyright (c) 2015年 Bakantu Eric. All rights reserved.
+//
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#define DNA_MAX 6
+#define EARTH_MAX 1000000
+#define CREATIVE_LIFE 5
+#define DNA_DIFF 3
+#define COPY_NUM 4
+#define DIFF_NUM 10
+
+int const best_dna[DNA_MAX] = {1,0,1,0,1,1};
+int diff_dna = 100;
+int enviroment_num = 0;
+
+struct creative {
+    int dna[DNA_MAX];
+    int copy_n;
+    int life;
+    int diff_n;
+} creative;
+
+int add_creative(struct creative *a_creative[], int father_dna[DNA_MAX], int mother_dna[DNA_MAX]);
+void creative_copy(struct creative *cc_creative[], int no);
+void kill_creative(struct creative *k_creative[]);
+int dna_done(struct creative *d_creative[]);
+void dna_ability(struct creative *db_creative);
+
+int main(int argc, const char * argv[]) {
+    srand((unsigned)time(NULL));
+    struct creative *creatives[EARTH_MAX];
+    int father[6] = {0,1,0,1,0,1}, mother[6] = {1,1,1,0,1,1};
+    for (int i = 0; i < EARTH_MAX; i++) creatives[i] = NULL;
+    
+    
+    {
+    add_creative(creatives,father,mother);
+    add_creative(creatives,mother,father);
+    add_creative(creatives,mother,father);
+    add_creative(creatives,mother,father);
+    add_creative(creatives,mother,father);
+    add_creative(creatives,mother,father);
+    }
+    
+    
+    int count = 0, ifdone = 0;
+    while (!(ifdone = dna_done(creatives))){
+        count = 0;
+        for (int i = 0; i < EARTH_MAX; i++){
+            if (creatives[i] != NULL){
+                creative_copy(creatives, i);
+                count++;
+            }
+        }
+        kill_creative(creatives);
+        printf("COUNT: %d\n",count);
+        if (count == 0){
+            add_creative(creatives,father,mother);
+            add_creative(creatives,mother,father);
+            add_creative(creatives,mother,father);
+            add_creative(creatives,mother,father);
+            add_creative(creatives,mother,father);
+            add_creative(creatives,mother,father);
+        }
+    }
+    return 0;
+}
+
+int dna_done (struct creative *d_creative[]){
+    int done = 0,s_done = 0;
+    for (int i = 0; i < EARTH_MAX; i++){
+        for (int j = 0; j < DNA_MAX; j++){
+            if (d_creative[i] != NULL){
+                if (d_creative[i]->dna[j] != best_dna[j]) s_done = 0;
+            }
+            else{
+                s_done = 0;
+                continue;
+            }
+        }
+        if (s_done == 1){
+            done = i;
+            break;
+        }
+        s_done = 1;
+    }
+    return done;
+}
+
+int add_creative(struct creative *a_creative[], int father_dna[DNA_MAX], int mother_dna[DNA_MAX]){
+    int a_done = 0;
+    srand((unsigned)time(NULL));
+    for (int i = 0;i < EARTH_MAX; i++){
+        if (a_creative[i] == NULL){
+            a_done = 1;
+            a_creative[i] = malloc(sizeof(struct creative));
+            a_creative[i]->life = 0;
+            int dna_cut = rand()%DNA_MAX, dna_fm = rand()%2;
+            for (int j = 0; j < dna_cut; j++){
+                if (dna_fm) a_creative[i]->dna[j] = father_dna[j];
+                else a_creative[i]->dna[j] = mother_dna[j];
+            }
+            for (int j = dna_cut; j < DNA_MAX; j++){
+                if(!dna_fm)a_creative[i]->dna[j] = father_dna[j];
+                else a_creative[i]->dna[j] = mother_dna[j];
+            }
+            dna_ability(a_creative[i]);
+            if ((rand()%(a_creative[i]->diff_n)) == (rand()%DNA_MAX)){
+                a_creative[i]->dna[rand()%DNA_MAX] = rand()%2;
+            }
+            break;
+        }
+    }
+    return a_done;
+}
+
+void dna_ability(struct creative *db_creative){
+    int envir_same = 0,envir_diff = 0;
+    for (int i = 0; i < DNA_MAX-DNA_DIFF; i++){
+        if ((db_creative->dna[i]) == best_dna[i]) envir_same++;
+    }
+    db_creative->copy_n = COPY_NUM-envir_same;
+    
+    for (int i = DNA_MAX-DNA_DIFF; i < DNA_MAX; i++){
+        if((db_creative->dna[i]) == best_dna[i]) envir_diff++;
+    }
+    db_creative->diff_n = DIFF_NUM-envir_diff;
+}
+
+void creative_copy(struct creative *cc_creative[],int no){
+    srand((unsigned)time(NULL));
+    if ((rand()%(cc_creative[no]->copy_n)) == 0){
+        int count = 0,ifnot = 0;
+        if (no != 0)
+        while ((cc_creative[no+(++count)] != NULL) && ((no+count) < EARTH_MAX)){
+            ifnot = 1;
+            add_creative(cc_creative,cc_creative[no]->dna,cc_creative[no+count]->dna);
+            break;
+        }
+        count = 0;
+        while ((ifnot == 0) && (cc_creative[no-(++count)] != NULL) && ((no-count) >= 0)){
+            ifnot = 1;
+            add_creative(cc_creative,cc_creative[no]->dna,cc_creative[no-count]->dna);
+            break;
+        }
+    }
+}
+
+void kill_creative(struct creative *k_creative[]){
+    for (int i = 0; i < EARTH_MAX; i++){
+        if (k_creative[i] != NULL){
+            if (k_creative[i]->life == CREATIVE_LIFE){
+                free(k_creative[i]);
+                k_creative[i] = NULL;
+            }
+            else (k_creative[i]->life)++;
+        }
+    }
+}