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42 lines
875 B
42 lines
875 B
#include <stdio.h>
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#include <stdlib.h>
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#include <ctime>
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#define SIZE 1024
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// the add function
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void vector_add(float* A, float* B, float* C, int size) {
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for (int i = 0; i < size; i++) {
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C[i] = A[i] + B[i];
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}
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}
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int main() {
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// define the size
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float A[SIZE];
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float B[SIZE];
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float C[SIZE];
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// use 'for' to random
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for (int i = 0; i < SIZE; i++) {
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A[i] = (float)(rand() % 100);
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B[i] = (float)(rand() % 100);
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}
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clock_t start_time, end_time;
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// get the start time
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start_time = clock();
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// use the function
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vector_add(A, B, C, SIZE);
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// get the end time
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end_time = clock();
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// get the time and transform to secound
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double elapsed_time = ((double)(end_time - start_time)) / CLOCKS_PER_SEC;
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printf("基础向量加法的运行时间：%f 秒\n", elapsed_time);
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return 0;
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} |