学步园

注意输出进位次数超过1是要加s

小学生算术

#include <cstdio>
#include <cstring>
#include <iostream>
using namespace std;
char str1[12],str2[12];
int num1[12],num2[12];
int main(){
    int a,b;
    while(~scanf("%d%d",&a,&b),(a || b)){
        sprintf(str1,"%d",a);
        sprintf(str2,"%d",b);
        memset(num1,0,sizeof(num1));
        memset(num2,0,sizeof(num2));
        int sum = 0,count = 0;
        int l1 = strlen(str1),l2 = strlen(str2);
        for(int i = l1 - 1;i >= 0;i--){
            num1[count++] = str1[i] - '0';
        }
        count = 0;
        for(int i = l2 - 1;i >= 0;i--)
            num2[count++] = str2[i] - '0';
        for(int i = 0;i < 12;i++){
            num1[i] += num2[i];
            if(num1[i] >= 10){
                num1[i + 1] += 1;
                num1[i] -= 10;
                sum++;
            }
        }
        if(!sum)printf("No carry operation.\n");
        else if(sum == 1)printf("%d carry operation.\n",sum);
        else printf("%d carry operations.\n",sum);
    }
    return 0;
}

#include <cstdio>
#include <cstring>
#include <iostream>
using namespace std;
char str1[20],str2[20];
int num1[20],num2[20];
int main(){
    while(cin>>str1>>str2){
        memset(num1,0,sizeof(num1));
        memset(num2,0,sizeof(num2));
        int sum = 0,count = 0;
        int l1 = strlen(str1),l2 = strlen(str2);
        if(l1 == 1 && l2 == 1 && str1[0] == '0' && str2[0] == '0'){break;}
        for(int i = l1 - 1;i >= 0;i--){
            num1[count++] = str1[i] - '0';
        }
        count = 0;
        for(int i = l2 - 1;i >= 0;i--){
            num2[count++] = str2[i] - '0';
        }
        for(int i = 0;i < 19;i++){
            num1[i] += num2[i];
            if(num1[i] >= 10){
                num1[i + 1] += num1[i] / 10;
                num1[i] %= 10;
                sum++;
            }
        }
        if(!sum)printf("No carry operation.\n");
        else if(sum == 1) printf("%d carry operation.\n",sum);
        else printf("%d carry operations.\n",sum);
    }
    return 0;