标签：des style class blog code java
decimal system |
| Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) |
| Total Submission(s): 3243 Accepted Submission(s): 1242 |
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Problem Description
As we know , we always use the decimal system in our common life, even using the computer. If we want to calculate the value that 3 plus 9, we just import 3 and 9.after calculation of computer, we will get the result of 12.
But after learning <<The Principle Of Computer>>,we know that the computer will do the calculation as the following steps: 1 computer change the 3 into binary formality like 11; 2 computer change the 9 into binary formality like 1001; 3 computer plus the two number and get the result 1100; 4 computer change the result into decimal formality like 12; 5 computer export the result; In the computer system there are other formalities to deal with the number such as hexadecimal. Now I will give several number with a kind of change method, for example, if I give you 1011(2), it means 1011 is a number in the binary system, and 123(10) means 123 if a number in the decimal system. Now I will give you some numbers with any kind of system, you guys should tell me the sum of the number in the decimal system. |
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Input
There will be several cases. The first line of each
case contains one integers N, and N means there will be N numbers to import,
then there will be N numbers at the next N lines, each line contains a number
with such form : X1….Xn.(Y), and 0<=Xi<Y, 1<Y<=10. I promise you
that the sum will not exceed the 100000000, and there will be at most 100 cases
and the 0<N<=1000.
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Output
There is only one line output case for each input case,
which is the sum of all the number. The sum must be expressed using the decimal
system.
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Sample Input
3 1(2) 2(3) 3(4) 4 11(10) 11(2) 11(3) 11(4) |
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Sample Output
6 23 |
这是个任意进制转换为十进制问题
难点输入int char int char的话就用%d%c%d%c
还有在输入时字符一定要用英文输入，不然结果会出错！！血的教训啊！！！！PS我鼓弄了一早上才发现
#include<stdio.h> #include<math.h> int fact(int n,int po) //任意进制转化为十进制 { int exsum=0,temp,cnt=0; while(n) { temp=n%10; exsum +=temp*pow(po,cnt); cnt++; n /=10; } return exsum; } int main() { int num,exnum,pos,sum=0,i; char r,l; while(scanf("%d",&num)!=EOF) { for( i=0;i<num;i++) { scanf("%d%c%d%c",&exnum,&l,&pos,&r); //输入intcharintchar sum +=fact(exnum,pos); //计算num个数的和 } printf("%d\n",sum); sum=0; //***和清零 } return 0; }
我的ACM——hdu 2016,布布扣,bubuko.com
标签：des style class blog code java
原文地址：http://www.cnblogs.com/mm-happy/p/3789440.html
