USACO Section 1.2 Name That Number

大意略。

从文件读出数据不太会额。

/*ID:g0feng1LANG:C++TASK:namenum*/#include <iostream>#include <fstream>#include <cstdlib>#include <cstdio>#include <string>#include <cstring>#include <cmath>#include <vector>#include <algorithm>#include <stack>using namespace std;ofstream fout("namenum.out");ifstream fin("namenum.in");fstream dic("dict.txt");int ans[] = {2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 0, 7, 7, 8, 8, 8, 9, 9, 9, 0};  vector<string> save;int n;string in, out;void read_case(){fin>>in;n = in.size();while(dic>>out){if(out.size() == n)save.push_back(out);}}void solve(){read_case();int flag1 = 0, flag2 = 0;for(int i = 0; i < save.size(); i++){flag1 = 0;for(int j = 0; j < n; j++){if(ans[save[i][j]-'A'] != in[j]-'0') {flag1 = 1; break;}}if(!flag1){flag2 = 1;fout<<save[i]<<endl;}}if(!flag2) fout<<"NONE"<<endl;}int main(){solve();return 0;}