str blog bre nbsp har logs spa 大数相加
- c++tring sum(strings1,string s2)
- {
- if(s1.length()<s2.length())
- {
- stringtemp=s1;
- s1=s2;
- s2=temp;
- }
- int i,j;
- for(i=s1.length()-1,j=s2.length()-1;i>=0;i--,j--)
- {
- s1[i]=char(s1[i]+(j>=0s2[j]-'0':0));
- if(s1[i]-'0'>=10)
- {
- s1[i]=char((s1[i]-'0')%10+'0');
- if(i) s1[i-1]++;
- elses1='1'+s1;
- }
- }
- return s1;
- }
- C语言
- chars1[1000];
- chars2[1000];
- void Add1()
- {
- intnum1[2000],num2[20000];
- memset(num1,0,sizeof(num1));
- memset(num2,0,sizeof(num2));
- int i,j;
- intlen1=strlen(s1);
- intlen2=strlen(s2);
- for(i=len1-1,j=0;i>=0;i--)
- num1[j++]=s1[i]-'0';
- for(i=len2-1,j=0;i>=0;i--)
- num2[j++]=s2[i]-'0';
- for(i=0;i<2000;i++)
- {
- num1[i]+=num2[i];
- if(num1[i]>9)
- {
- num1[i]-=10;
- num1[i+1]++;
- }
- }
- for( i=1999;i>=0;i--)
- if(num1[i]!=0)
- break;
- if(i==-1)
- printf("0",num1[i]);
- for(;i>=0;i--)
- printf("%d",num1[i]);
- printf("\n");
- }
C++ 大数相加
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