Submission #145560

#	Time	Username	Problem	Language	Result	Execution time	Memory
145560		surface03	줄 세우기 (KOI13_jul)	C++14	22 / 22	169 ms	15036 KiB

jul

#include<bits/stdc++.h>
using namespace std;
int a[1000010],b[1000010];
int main(){
    int n,x,i,ans=0;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        scanf("%d",&x);
        a[x]=i;
    }
    b[1]=1;
    for(i=2;i<=n;i++){
        if(a[i-1]<a[i])b[i]=b[i-1]+1;
        else b[i]=1;
        ans=max(ans,b[i]);
    }
    printf("%d",n-ans);
}

Compilation message (stderr)

jul.cpp: In function 'int main()':
jul.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
jul.cpp:8:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
         ~~~~~^~~~~~~~~

• Subtask 1: 2.2 / 2.2
• Subtask 2: 3.3 / 3.3
• Subtask 3: 3.3 / 3.3
• Subtask 4: 4.4 / 4.4
• Subtask 5: 4.4 / 4.4
• Subtask 6: 4.4 / 4.4