Submission #1890

#TimeUsernameProblemLanguageResultExecution timeMemory
1890mh5664최댓값 (tutorial2)C++98
Compilation error
0 ms0 KiB
#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 (stderr)

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