제출 #4939

#제출 시각아이디문제언어결과실행 시간메모리
4939jumax1008최댓값 (tutorial2)C++98
컴파일 에러
0 ms0 KiB
#include <cstdio> int main() { FILE *fp=fopen("example.in","r"); int n,in[10],m=0; fscanf(fp,"%d",&n); for(int i=0 ; i<n; i++) { fscanf(fp,"%d",&in[i]); if(m<in[i]) m=in[i]; } fclose(fp); fp = fopen("example.out","w"); fprintf(fp,"%d",m); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

tutorial2.cpp: In function 'int main()':
tutorial2.cpp:6:21: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
tutorial2.cpp:9:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
/tmp/ccT6EXkx.o: In function `main':
tutorial2.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccJmByaN.o:grader.cpp:(.text.startup+0x0): first defined here
/tmp/ccJmByaN.o: In function `main':
grader.cpp:(.text.startup+0x97): undefined reference to `GetMax(int, int*)'
collect2: ld returned 1 exit status