C語言小教室-3

C語言小教室

前情提要:這裡會針對一些題目做解釋,紀錄我們一路寫程式的心路歷程.

題目一:(UVA10783) Odd Sum :

Time Limit: 3 sec

Description

Given a range [a, b], you are to find the summation of all the odd integers in this range. For example, the summation of all the odd integers in the range [3, 9] is

3 + 5 + 7 + 9 = 24.

Input

There can be at multiple test cases. The first line of input gives you the number of test cases,T (1 ≤ T≤ 100). Then T test cases follow. Each test case consists of 2 integers a and b (0 a ≤ b ≤100) in two separate lines.

Output

For each test case you are to print one line of output - the serial number of the test case followed by the summation of the odd integers in the range [a, b]. 

Sample Input	Sample Output	Sample IO Generation
2 1 5 3 5	Case 1: 9 Case 2: 8	IO Generation(tested feature)

 

#include <stdio.h>

   宣告主函式 

int main()

{

宣告a和b用來儲存兩數. 

int a,b,n;

scanf("%d",&a);

for(int i=1;i<=a;i++)

{

int d=0;

scanf("%d%d",&b,&n);

for(int i=b;i<=n;i++)

{

if(i%2==1)d+=i;

}

printf("Case %d: %d\n",i,d);

}

return 0;

}

待編輯