OJ中的文件读写 freopen ifstream ofstream
c/c++:
输入:
freopen("data.in","r",stdin);
fclose(stdin);
输出:
freopen("data.out","w",stdout);
fclose(stdout);
c++:
输入/输出:
#include <fstream>
ifstream cin("data.in");
ofstream cout("data.out");
c/c++:
输入:
freopen("data.in","r",stdin);
fclose(stdin);
输出:
freopen("data.out","w",stdout);
fclose(stdout);
c++:
输入/输出:
#include <fstream>
ifstream cin("data.in");
ofstream cout("data.out");