Submission #1383387

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Source Code Expand

#include <cstdio>

using namespace std;

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

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     int n;scanf("%d",&n);
                         ^
./Main.cpp:8:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     int ans=1,x,t=0;scanf("%d",&x);
                                   ^
./Main.cpp:11:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         int y;scanf("%d",&y);
                             ^

Judge Result