제출 #28322

#제출 시각아이디문제언어결과실행 시간메모리
28322ㅁㄴㅇㄹ호 (#68)포도주 시음 (FXCUP2_wine)C++14
1 / 1
109 ms2288 KiB
#include <stdio.h> #include <cstdlib> #include <cstring> #include <algorithm> #include <numeric> #include <string> #include <vector> #include <tuple> using namespace std; int arr[300010]; int main() { //freopen("in", "r", stdin); //freopen("out", "w", stdout); int n, k, i; long long res; scanf("%d%d", &n, &k); for(i = 0; i<n; i++) scanf("%d", &arr[i]); sort(arr, arr+n); res = arr[n-1]; for(i = 1; i<k; i++) { if(n-1-i/2 <= i/2-1) break; if(i % 2 == 0) res += 0LL + arr[n-1-i/2] - arr[i/2-1]; } printf("%lld", res); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

wine.cpp: In function 'int main()':
wine.cpp:21:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &k);
                          ^
wine.cpp:24:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &arr[i]);
                             ^
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