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选修课考试作业
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姓名:春杰
级:电商14
1001 Sum Problem
Problem Description
Hey, welcome to HDOJ Hangzhou Dianzi University Online Judge .In this problem, your task is to calculate SUM n 1 + 2 + 3 + ... + n.
Input
The input will consist of a series of integers n, one integer per line.
Output
For each case, output SUM n in one line, followed by a blank line. You may assume the result will be in the range of 32-bit signed integer.
Sample Input
1
100
Sample Output
1
5050
Author
DOOM III
解答:
#include
main int n,i,sum; sum 0; while scanf %d,n ! -1 sum 0; for i 0;i n;i++ sum+ i; printf %d\n\n,sum ; 1089 A+B for Input-Output Practice I
Problem Description
Your task is to Calculate a + b.Too easy?! Of course! I specially designed the problem for acm beginners. You must have found that some problems have the same titles with this one, yes, all these problems were designed for the same aim.
Input
The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line.
Output
For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.
Sample Input
1 5
10 20
Sample Output
6
30
Author
lcy
Recommend
JGShining
解答:
#include
main int a,b; while scanf %d%d,a,b ! EOF printf %d\n,a+b ; 1090 A+B for Input-Output Practice II
Problem Description
Your task is to Calculate a + b.
Input
Input contains an integer N in the first line, and then N lines follow. Each line consists of a pair of integers a and b, separated by a space, one pair of integers per line.
Output
For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.
Sample Input
2
1 5
10 20
Sample Output
6
30
Author
lcy
Recommend
JGShining
解答:
#include
#define M 1000
void main int a ,b,n,j[M],i; //printf please inp
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