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1001 为什么我总是wrong answer请大虾指点以下是我的代码: #include<stdio.h> #include<math.h> #include<string.h> # define d 5 void main() {int h,i,j,k,m,n,r,s,t,u,v=0,w,x,y,z=0,a[151]={0},b[d],c[151]; for(w=d-1;w>=0;w--) { y=getchar(); if(y!='.') c[w]=b[w]=y-48; else { w++; v=w; } } scanf("%d",&h); if((n=h)==1) { memset(c,0,131); c[0]=1; c[1]=0; c[2]=0; c[3]=0; c[4]=0; } else n=h-1; for(i=1,s=d;i<=n;i++) { memset(a,0,131); for(j=0;j<d;j++) for(k=0,m=0;k<s;k++,m++) { a[m+j]+=(b[j]*c[k])%10; if(a[m+j]>=10) { a[m+j+1]+=a[m+j]/10; a[m+j]=a[m+j]%10; } a[m+j+1]+=(b[j]*c[k])/10; if(a[m+j+1]>=10) { a[m+j+2]+=a[m+j+1]/10; a[m+j+1]=a[m+j+1]%10; } } for(r=0;r<m+j;r++) c[r]=a[r]; s=m+j; } u=s-1; while(a[u]==0&&u>v*h-1) u--; while(a[z]==0) z++; for(t=u;t>=z;t--) { if(h==1&&t==v-1) printf("."); else if(t==v*h-1) printf("."); printf("%d",a[t]); } printf("\n"); } 我试过了 只有0。4321 20 这组数据有问题。。。。 Followed by:
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