求帮助我简化代码并指导一下我
本帖最后由 阴阳神万物主 于 2020-1-3 15:30 编辑#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
/**
* Auto-generated code below aims at helping you parse
* the standard input according to the problem statement.
**/
int main()
{
freopen("filenamein.txt","r",stdin);
freopen("filenameout.txt","w",stdout);
freopen("filenamerr.txt","w",stderr);
int N; // Number of elements which make up the association table.
cin >> N; cin.ignore();cerr<<N<<endl;
int Q; // Number Q of file names to be analyzed.
cin >> Q; cin.ignore();cerr<<Q<<endl;
string EXT; // file extension
string MT;// MIME type.
for (int i = 0; i < N; i++) {
cin >> EXT >> MT; cin.ignore();
for(int b=0;b<EXT.length();b++)
{
if(isupper(EXT))EXT+=32;
}
cerr<<"EXT["<<i+1<<"]:"<<EXT<<" "<<"MT["<<i+1<<"]:"<<MT<<endl;
}
for (int i = 0; i < Q; i++) {
string FNAME; // One file name per line.
getline(cin, FNAME);cerr<<"FNAME"<<i+1<<":"<<FNAME<<endl;
cerr<<"rfind:"<<FNAME.rfind('.')<<endl;
if(FNAME.rfind('.') <FNAME.length()){
int a=FNAME.rfind('.') + 1;
char c="";int b=0;
for (;a<FNAME.length();b++)
{
if(isupper(FNAME))c=FNAME + 32;
else c=FNAME;
a++;
}
cerr<<"c:"<<c<<endl;
int v=0;
if(c=="")cout<<"UNKNOWN"<<endl;
else
{ for(;EXT!=c && v<N;v++);
if(v<N)cout<<MT<<endl;
else cout<<"UNKNOWN"<<endl;
}
}
else cout<<"UNKNOWN"<<endl;
}
fclose(stdin);fclose(stdout);fclose(stderr);
return 0;
}
为解决问题：https://www.codingame.com/ide/puzzle/mime-type
已经解决，把输入方式改为 scanf 即可
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