杭电ACM 1002

#include<iostream> #include<cstring> using namespace std; int main() { int p; char ca[1000],cb[1000]; int ia[1000],ib[1000],cs[1000]; int i,t,k,l; int n=0,m=0; int x=1; cin >>p; while(p--) { cin >>ca; cin >>cb; n=strlen(ca); m=strlen(cb); //while (ca[n]) n++; //while (cb[m]) m++; for (i=0;i<n;i++) ia[n-1-i]=ca[i]-48; for (i=0;i<m;i++) ib[m-1-i]=cb[i]-48; if (n>=m) { ia[n]=0; for (i=m;i<=n;i++) ib[i]=0; } else { ib[m]=0; for (i=n;i<=m;i++) ia[i]=0; } t=n>=m?n:m; l=0; for(i=0;i<t+1;i++) { k=ia[i]+ib[i]; cs[i]=(k+l); l=(k+l)/10; } cout <<"Case "<<x<<endl; for (i=n-1;i>=0;i--) cout <<ia[i]; cout <<" + "; for (i=m-1;i>=0;i--) cout <<ib[i]; cout <<" = "; for (i=t;i>=0;i--) { if (i==t||cs[i]==0) continue; cout<<cs[i]; } if(p==0) cout <<endl; else cout <<endl<<endl; x++; } return 0; }