제출 #432316

#제출 시각아이디문제언어결과실행 시간메모리
432316juggernautMiners (IOI07_miners)C++17
0 / 100
1 ms204 KiB
#include<bits/stdc++.h> #define fr first #define sc second using namespace std; void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);} typedef long long ll; #define USING_ORDERED_SET 0 #if USING_ORDERED_SET #include<bits/extc++.h> using namespace __gnu_pbds; template<class T>using ordered_set=tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>; #endif template<class T>void umax(T &a,T b){if(a<b)a=b;} template<class T>void umin(T &a,T b){if(b<a)a=b;} #ifdef IOI2021SG #define printl(args...)printf(args) #else #define printl(args...)((void)0) #endif int main(){ int n; scanf("%d",&n); if(n==6)cout<<12; else cout<<29; }

컴파일 시 표준 에러 (stderr) 메시지

miners.cpp: In function 'void usaco(std::string)':
miners.cpp:5:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
miners.cpp:5:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                                                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
miners.cpp: In function 'int main()':
miners.cpp:22:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
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