int sum = 0; for (int i = 0; i < 5; i++) { sum += arr[i]; } printf("Sum of array elements: %d\n", sum); return 0; } 此代码定义了一个包含 5 个元素的整型数组arr,并通过for循环遍历数组,计算数组元素的总和。数组是一种重要的数据结构,用于存储多个相同类型的数据,方便进行批量处...
#include<stdio.h>intmain(void){printf("Type int has a size of %zd bytes.\n",sizeof(int));printf("Type char has a size of %zd bytes.\n",sizeof(char));printf("Type double has a size of %zd bytes.\n",sizeof(double));printf("Type long has a size of %zd bytes.\n",sizeof(...
// C program to calculate the sum of array elements// using pointers as an argument#include <stdio.h>intCalculateSum(int*arrPtr,intlen) {inti=0;intsum=0;for(i=0; i<len; i++) { sum=sum+*(arrPtr+i); }returnsum; }intmain() {intintArr[5]={10,20,30,40,50};intsum=0;...
int array[n]; //非法 因为标准C认为数组元素的个数n不是常量,虽然编译器似乎已经“看到”了n的值,但intarray[n]要在运行时才能读取变量n的值,所以在编译期无法确定其空间大小。使用符号常量定义数组长度的正确形式如下: #define N 10 int array[N]; 即可根据实际的需要修改常量N的值。 由于数组元素下标的...
In the first example you can remove any element with the value 2 so the array will look like [5,1,2,2]. The sum of this array is 10 and there is an element equals to the sum of remaining elements (5=1+2+2). In the second example you can remove 8 so the array will look li...
c-array-multiply-sumC 语言数组相乘求和代码 V1 #include <stdio.h> //函数用于计算两个数组对应元素相乘的和 int multiply_and_sum(int arr1[], int arr2[], int size) { int sum = 0;for (int i = 0; i < size; i++) { sum += arr1[i] * arr2[i];} return sum;} int main() ...
Program ended with exit code: 0 9.1.2分析程序 略 9.1.3函数参数 使用带有参数的函数 #include <stdio.h>#include<string.h>/*为strlen()提供原型*/#defineNAME "GICATHINK, INC."#defineADDRESS "101 Megabuck Plaza"#definePLACE "Megapolis, CA 94904"#defineWIDTH 40#defineSPACE ' 'voidshow_n_char...
printf("Enter rows and column of matrix: "); scanf("%d %d", &r, &c); /* Storing element of matrix entered by user in array a[][]. */ printf("\nEnter elements of matrix:\n"); for(i=0; i<r; ++i) for(j=0; j<c; ++j) ...
array.*/ for(i=0; i<n; i++) { arr2[i] = arr1[i]; } /* Prints the elements of first array */ printf("\nThe elements stored in the first array are :\n"); for(i=0; i<n; i++) { printf("% 5d", arr1[i]); } /* Prints the elements copied into the second array...
void* calloc(size_t numElements, size_t sizeOfElement); —— numElements×sizeOfElementvoid* realloc(void* ptr, unsigned newsize); —— 重新分配大小为size的一块内存空间函数malloc不能初始化所分配的内存空间,函数calloc() 会将所分配的内存空间中的每一位都初始化为零。 void*型指针不指定其指向哪...