Submission #145763

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
145763	2019-08-21T06:48:04 Z	leewj1025	최댓값 (tutorial2)	C++14	Compilation error	0 ms	0 KB

tutorial2

#include<stdio.h>

int main(){
  int n;
  int max=0;
  int a[1000];
  for(int i=0;i<n;i++){
    scanf("%d",&a[i]);
    if(max<a[i])
      max=a[i];
  }
  printf("%d",max);
}

Compilation message

tutorial2.cpp: In function 'int main()':
tutorial2.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&a[i]);
     ~~~~~^~~~~~~~~~~~
tutorial2.cpp:7:16: warning: 'n' is used uninitialized in this function [-Wuninitialized]
   for(int i=0;i<n;i++){
               ~^~
/tmp/ccR5zRtE.o: In function `main':
tutorial2.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccCm9opM.o:grader.cpp:(.text.startup+0x0): first defined here
/tmp/ccCm9opM.o: In function `main':
grader.cpp:(.text.startup+0x97): undefined reference to `GetMax(int, int*)'
collect2: error: ld returned 1 exit status