合法标记符:a12、A21、sum2、_fun、C_program 不合法标记符:f(x)、$a21、21a、while 1. **合法标记符分析**: - **a12**:以字母开头,后续为数字,符合规则。 - **A21**:以字母开头,后续为数字,合法。 - **sum2**:以字母开头,包含数字,合法。 - **_fun**:以下划线开头,后续为字母,合法。 -...
The above program takes input from the user and stores it in the variable n. Then, for loop is used to calculate the sum up to n. Sum of Natural Numbers Using while Loop #include <stdio.h> int main() { int n, i, sum = 0; printf("Enter a positive integer: "); scanf("%d",...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 intmain(){int line=0;scanf("%d",&line);//开始输出上半部分for(int i=1;i<=line;i++){//先输出空格for(int j=1;j<=line-i;j++){printf(" ");}for(int j=1;j<=2*i-1;j++){printf("*");}printf("\n");}return0;} 开始输出...
Sum and Product of all 1D Array Elements using C program/*Program to calculate Sum, Product of all elements.*/ #include <stdio.h> int main() { int arr[10]; int sum,product,i; /*Read array elements*/ printf("\nEnter elements : \n"); for(i=0; i<10; i++) { printf("Enter...
functionfor(inti=n-1;i>0;--i){exp_sum=1+x*exp_sum/i;// Calculate the next term of the series and update the sum}returnexp_sum;// Return the final result of the Taylor series approximation for e^x}// Main functionintmain(void){intn=25;// Number of terms for Taylor series...
C program to find sum of all numbers from 0 to N without using loop #include<stdio.h>intmain(void){intn,sum;//input value of nprintf("Enter the value of n:");scanf("%d",&n);//initialize sum with 0sum=0;//use formula to get the sum from 0 to nsum=n*(n+1)/2;//print...
intn,sum=0; printf("This program sums a series of integers.\n"); printf("Enter integers (0 to terminate):"); scanf("%d",&n); while(n!=0){ sum+=n; scanf("%d",&n); } printf("The sum is: %d\n",sum); return0;
C语言中常用的小数有两种类型,分别是 float 或 double;float 称为单精度浮点型,double 称为双精度浮点型。不像整数,小数没有那么多幺蛾子,小数的长度是固定的,float 始终占用4个字节,double 始终占用8个字节。 c语言double类型默认输出几位小数? C语言中,输出double类型(双精度实型)以及float类型(单精度实型)时...
This program segment calculates the sum of integer numbers from 1 to n. Initially, the value of n is read from the keyboard and variable sum is initialized to zero. Then a for loop is set up in which the loop variable j assumes values from 1 to n. For ea
printf (“This is my first C program!\n”); /* 输出语句*/ } /*函数结束*/ 三)结构说明: 1、由函数构成 (函数是C语言程序的基本单位。 )一个完整的C语言程序,是由一个main()函数(又称主函数)和若干个其它函数结合而成的,或仅由一个main()函数构成。