diff --git a/yang/2.c b/yang/2.c
deleted file mode 100644
index 900a1d6..0000000
--- a/yang/2.c
+++ /dev/null
@@ -1,59 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <arm_neon.h>
-
-
-#define SIZE 10000000
-
-void vectorAdd(float* A, float* B, float* C, int size) {
-    int i;
-    for (i = 0; i < size; ++i) {
-        C[i] = A[i] + B[i];
-    }
-}
-
-void vectorAddNEON(float* A, float* B, float* C, int size) {
-    int i;
-    for (i = 0; i <= size - 4; i += 4) { 
-        float32x4_t vecA = vld1q_f32(&A[i]);
-        float32x4_t vecB = vld1q_f32(&B[i]);
-
-        float32x4_t vecC = vaddq_f32(vecA, vecB);
-        vst1q_f32(&C[i], vecC);
-    }
-    for (; i < size; ++i) {
-        C[i] = A[i] + B[i];
-    }
-}
-
-int main() {
-    float* A = (float*)malloc(SIZE * sizeof(float));
-    float* B = (float*)malloc(SIZE * sizeof(float));
-    float* C = (float*)malloc(SIZE * sizeof(float));
-    if (A == NULL || B == NULL || C == NULL) {
-        return 1; 
-    }
-
-    srand((unsigned)time(NULL));
-        for (int i = 0; i < SIZE; ++i) {
-            A[i] = (float)(rand() % 100);
-            B[i] = (float)(rand() % 100);
-        }
-
-    clock_t start_time = clock();
-    vectorAdd(A, B, C, SIZE);
-    clock_t end_time = clock();
-    double time1 = (double)(end_time - start_time) / CLOCKS_PER_SEC;
-    printf("tradition: %f", time1);
-
-    start_time = clock();
-    vectorAddNEON(A, B, C, SIZE);
-    end_time = clock();
-    time1 = (double)(end_time - start_time) / CLOCKS_PER_SEC; 
-    printf("NEON %f",time1);
-
-    free(A);
-    free(B);
-    free(C);   
-}