Submission #1890

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1890	2013-07-19T08:35:08 Z	mh5664	최댓값 (tutorial2)	C++	Compilation error	0 ms	0 KB

tutorial2

#include <stdio.h>

FILE *in = fopen ("input.txt", "r"), *out = fopen ("output.txt", "w");

int main ()
{
	int n, d, max = -2147483647;
	fscanf (in, "%d", &n);

	for (int i = 0; i < n; ++i)
	{
		fscanf (in, "%d", &d);
		if (max < d)
			max = d;
	}
	fprintf (out, "%d", max);
	fclose (in);
	fclose (out);
	return 0;
}

Compilation message

tutorial2.cpp: In function 'int main()':
tutorial2.cpp:8:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
tutorial2.cpp:12:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
/tmp/ccEhuQ8f.o: In function `main':
tutorial2.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccfg3qhe.o:grader.cpp:(.text.startup+0x0): first defined here
/tmp/ccfg3qhe.o: In function `main':
grader.cpp:(.text.startup+0x97): undefined reference to `GetMax(int, int*)'
collect2: ld returned 1 exit status