Submission #1221170

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Source Code Expand

#include <cstdio>
#include <algorithm>
#include <cmath>
#include <queue>
#include <vector>
#include <map>
#include <set>

using namespace std;

typedef long long LL;
typedef pair<int , int> P2;
typedef pair<pair<int , int> , int> P3;
typedef pair<pair<int , int> , pair<int , int> > P4;
#define Fst first
#define Snd second
#define PB(a) push_back(a)
#define MP(a , b) make_pair((a) , (b))
#define M3P(a , b , c) make_pair(make_pair((a) , (b)) , (c))
#define M4P(a , b , c , d) make_pair(make_pair((a) , (b)) , make_pair((c) , (d)))
#define repp(i,a,b) for(int i = (int)(a) ; i < (int)(b) ; ++i)
#define repm(i,a,b) for(int i = (int)(a) ; i > (int)(b) ; --i)

int N,A;

int main(){
	scanf("%d%d" , &N , &A);
	int ans = 1;
	int z = 0;
	repp(i,1,N){
		int x;
		scanf("%d" , &x);
		if(A < x){
			if(z > 0){
				++ans;
				z = 0;
			} else {
				z = -1;
			}
		} else if(A > x){
			if(z < 0){
				++ans;
				z = 0;
			} else {
				z = 1;
			}
		}
		A = x;
	}
	printf("%d\n" , ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:27:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d" , &N , &A);
                         ^
./Main.cpp:32:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d" , &x);
                   ^

Judge Result