Submission #1869725

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Source Code Expand

#include <cstdio>
int n, a, b, c, x;
int main() {
	scanf("%d%d", &n, &a);
	for(int i=1; i<n; i++) {
		scanf("%d", &b);
		if(b==a) continue;
		if(x) {if(x==1 && b<a || x==-1 && b>a) x=0, c++;}
		else x = b>a ? 1:-1;
		a = b;
	}
	printf("%d", c+1);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:4:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &a);
                       ^
./Main.cpp:6:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &b);
                  ^

Judge Result