Submission #942945

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Source Code Expand

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>

#define scanl(x) scanf("%ld", &x)
#define scans(x) scanf("%s", x)

#define INF 1000000000

#define min(a,b) (((a)<(b))?(a):(b))
#define max(a,b) (((a)>(b))?(a):(b))

int main() {
	long K, T;
	long a[100001];
	int i;
	long m = 0;
	
	scanl(K); scanl(T);
	for(i=0;i<T;i++) {
		scanl(a[i]);
		m = max(m, a[i]);
	}
	
	printf("%ld\n", max(2 * m - K - 1, 0));
	
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:6:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
 #define scanl(x) scanf("%ld", &x)
                  ^
./Main.c:20:2: note: in expansion of macro ‘scanl’
  scanl(K); scanl(T);
  ^
./Main.c:6:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
 #define scanl(x) scanf("%ld", &x)
                  ^
./Main.c:20:12: note: in expansion of macro ‘scanl’
  scanl(K); scanl(T);
            ^
./Main.c:6:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
 #define scanl(x) scanf("%ld", &x)
                  ^
./Main.c:22:3: note: in expansion of macro ‘scanl’
   scanl(a[i]);
   ^

Judge Result