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我不知道是哪里有错误,我在Dev编译正确,这里就不行了;#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAX_N=50000;
int N,L[MAX_N];
void solve() {
ll ans=0;
while(N>1) {
int mii1=0,mii2=1;
if(L[mii1]>L[mii2]) swap(mii1,mii2);
for(int i=2;i<N;i++) {
if(L[i]<L[mii1]) {
mii2=mii1;
mii1=i;
} else if(L[i]<L[mii2]) {
mii2=i;
}
}
int t=L[mii1]+L[mii2];
ans+=t;
if(mii1==N-1) swap(mii1,mii2);
L[mii1]=t;
L[mii2]=L[N-1];
N--;
}
printf("%lld\n",ans);
}
int main() {
cin>>N;
for(int i=0;i<N;i++) {
cin>>L[i];
}
solve();
return 0;
}
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