jinhy_npu @ 2022-10-11 18:42:24
#include<bits/stdc++.h>
using namespace std;
int main(){
long long n,ans=0;long long s[100000000];
cin>>n;
for(long long i=1;i<=n;i++){
cin>>s[i];
}
for(long long j=1;j<=n;j++){
for(long long k=j+1;j<=n;k++)
{
if(s[j]>s[k]){
ans++;
}
else{
ans+=0;
}
}
}
cout<<ans<<endl;
return 0;
}
屎山代码 求看看为啥RE
by AC_CSP @ 2022-10-11 18:43:15
for(long long k=j+1;j<=n;k++)
by jinhy_npu @ 2022-10-11 18:44:18
@AC_CSP 草 谢谢佬!Orz
by liruize2013 @ 2022-11-04 21:04:14
题说“请使用较快的输入输出”建议用scanf,printf 这样能节省将近100ms(毫秒)
by liruize2013 @ 2022-11-04 21:04:50
数据大的情况下
by liruize2013 @ 2022-11-04 21:05:12
@jinhy_npu