提交记录 14716 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
sahdsg	1001. 测测你的排序	Compile Error	0	0 ns	0 KB	C++	176 B

提交时间	评测时间
2020-11-02 19:07:08	2020-11-02 19:07:09

代码

#include <cstdlib>

void cmp(const void*a, const void*b) {
	return (*(unsigned*)a)<(*(unsigned*)b)?-1:1;
}

void sort(unsigned *a, int n) {
	qsort(a,n,sizeof(unsigned),cmp);
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/8c7e676a1cfb11ebb5e000163e04388b/contestant.cpp: In function ‘void cmp(const void*, const void*)’:
jp_data/tasks/8c7e676a1cfb11ebb5e000163e04388b/contestant.cpp:4:44: error: return-statement with a value, in function returning ‘void’ [-fpermissive]
    4 |  return (*(unsigned*)a)<(*(unsigned*)b)?-1:1;
      |                                            ^
jp_data/tasks/8c7e676a1cfb11ebb5e000163e04388b/contestant.cpp: In function ‘void sort(unsigned int*, int)’:
jp_data/tasks/8c7e676a1cfb11ebb5e000163e04388b/contestant.cpp:8:29: error: invalid conversion from ‘void (*)(const void*, const void*)’ to ‘__compar_fn_t’ {aka ‘int (*)(const void*, const void*)’} [-fpermissive]
    8 |  qsort(a,n,sizeof(unsigned),cmp);
      |                             ^~~
      |                             |
      |                             void (*)(const void*, const void*)
In file included from /usr/include/c++/9/cstdlib:75,
                 from jp_data/tasks/8c7e676a1cfb11ebb5e000163e04388b/contestant.cpp:1:
/usr/include/stdlib.h:831:20: note:   initializing argument 4 of ‘void qsort(void*, size_t, size_t, __compar_fn_t)’
  831 |      __compar_fn_t __compar) __nonnull ((1, 4));
      |      ~~~~~~~~~~~~~~^~~~~~~~