1026: a+b问题

使用scanf和cin可以保证遇到空格或者换行符就读入下一个变量

#include <bits/stdc++.h>
using namespace std;unordered_map<string, int> mp; 
int Process(){string s1,s2;int num;cin>>s1 >> s2;  //使用scanf和cin可以保证遇到空格或者换行符就读入下一个变量if(s2[0] == '+' || s2[0] == '=')num = mp[s1];else{num =mp[s1]*10+mp[s2];cin>>s1;  //要记得还没读入的符号 } return num;}int main(){int A,B;mp["zero"] = 0; mp["one"] = 1; mp["two"] = 2; mp["three"] = 3; mp["four"] = 4; mp["five"] = 5; mp["six"] = 6;mp["seven"]= 7; mp["eight"] = 8; mp["nine"] = 9; while(1){A = Process();B = Process();if( A + B ==0) break;printf("%d\n",A+B);}return 0;	
}