2009-01-30 21:43:46來源不明
ACM 10924 10924 - Prime Words
/************************************************************/
- #include<stdio.h>
- #include<stdlib.h>
- #include<string.h>
- #include<math.h>
- main()
- {
- char x[25];
- while(gets(x))
- {
- int a,b,c,sum=0,flag=0;
- for(a=0;a<strlen(x);a++)
- {
- if(x[a]>=97)
- sum=sum+x[a]-96;
- if(x[a]<=90)
- sum=sum+x[a]-38;
- }
- for(a=2;a<=(int)sqrt(sum);a++)
- {
- if(sum%a==0)
- {flag=1;break;}
- }
- if(flag==1)
- printf("It is not a prime word.\n");
- else
- printf("It is a prime word.\n");
- }
- return 0;
- }
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