C語言源碼： [cpp] #include<stdio.h> #include<string.h> #define maxsize 10000 typedef struct big { int in[maxsize],fl[maxsize]; int insize,flsize; }big; big a,b; int addfl() { int i,n,k; n=a.flsize>b.flsize?a.flsize:b.flsize; i=n-1; while(i>0) { a.fl[i-1]+=(a.fl[i]+b.fl[i])/10; a.fl[i]=(a.fl[i]+b.fl[i])%10; i--; } k=(a.fl[i]+b.fl[i])/10; a.fl[i]=(a.fl[i]+b.fl[i])%10; a.flsize=n; return k; } void addin(int k) { int i,n; n=a.insize>b.insize?a.insize:b.insize; for(i=0;i<n;i++) { if(i==0) { a.in[i+1]+=(a.in[i]+b.in[i]+k)/10; a.in[i]=(a.in[i]+b.in[i]+k)%10; } else { a.in[i+1]+=(a.in[i]+b.in[i])/10; a.in[i]=(a.in[i]+b.in[i])%10; } } if(a.in[n]!=0) n++; a.insize=n; } int main() { char s1[maxsize],s2[maxsize]; int n,i,k,lens1,lens2,point1,point2,j; while(scanf("%d",&n)!=EOF) { while(n--) { for(i=0;i<maxsize;i++) { a.in[i]=0; a.fl[i]=0; b.in[i]=0; b.fl[i]=0; } getchar(); scanf("%s",s1); getchar(); scanf("%s",s2); getchar(); lens1=(int)strlen(s1); lens2=(int)strlen(s2); i=0; while(s1[i]!='.') i++; point1=i; i=0; while(s2[i]!='.') i++; point2=i; for(i=point1-1;i>=0;i--) a.in[point1-1-i]=s1[i]-'0'; for(i=point1+1;i<lens1;i++) a.fl[i-1-point1]=s1[i]-'0'; a.insize=point1; a.flsize=lens1-point1-1; for(i=point2-1;i>=0;i--) b.in[point2-1-i]=s2[i]-'0'; for(i=point2+1;i<lens2;i++) b.fl[i-1-point2]=s2[i]-'0'; b.insize=point2; b.flsize=lens2-point2-1; k=addfl(); addin(k); j=a.insize; while(j&&a.in[j-1]==0) j--; if(j<=0) printf("0"); else www.2cto.com for(i=j-1;i>=0;i--) printf("%d",a.in[i]); printf("."); j=a.flsize-1; while(j>=0&&a.fl[j]==0) j--; if(j>=0) { for(i=0;i<=j;i++) printf("%d",a.fl[i]); } printf("\n"); } } }
