CyaNgw_DyG @ 2021-08-13 20:35:24
#include<bits/stdc++.h>
using namespace std;
int main(){
int a,b,o;
cin>>a>>b;
if(b<=0)for(o=0;o>b;o--)a+=-1;
else for(o=1;o<=b;o++)a+=1;
cout<<a;
return o;
}
by chiyuye @ 2021-08-23 16:02:03
你直接输出a+b不就行了吗?这样会对吗?
by CyaNgw_DyG @ 2021-08-24 08:46:55
@chiyuye a+b??我不会写A+B,老师叫我用循环做,开O2优化就过了,但是别写return o就行了
by Wang1006 @ 2021-08-26 20:42:59
真要乱写的话可以这么写。。。 ac记录
#include<iostream>
using namespace std;
int main(){
intt:
int a,b;
init:
cin>>a>>b;
out:
cout<<a+b;
goto end;
rp:
while(1)cout<<"rp++";
end:
return 0;
}
by CyaNgw_DyG @ 2021-08-27 08:57:09
额
by Wang1006 @ 2021-08-28 15:45:10
这个过不了TLE
#include<bits/stdc++.h>
using namespace std;
struct AC{
int u,v,w;
}edge[20000005];
int fa[50000005],n,m,ans,eu,ev,cnt;
bool cmp(AC a,AC b){
return a.w<b.w;
}
int find(int x){
while(x!=fa[x]) x=fa[x]=fa[fa[x]];
return x;
}
int main(){
init:
cin>>n>>m;
if(n<=0||m<=0){
cout<<n+m;
return 0;
}
for(int i=1;i<=n;i++){
fa[i]=i;
}
for(int i=1;i<=n-1;++i){
edge[i].u=1,edge[i].v=n,edge[i].w=1;
}
kruskal:
sort(edge,edge+m,cmp);
for(int i=0;i<m;i++){
eu=find(edge[i].u), ev=find(edge[i].v);
if(eu==ev){
continue;
}
ans+=edge[i].w;
fa[ev]=eu;
if(++cnt==n-1){
break;
}
}
out:
printf("%d",ans+1+m);
return 0;
}
by CyaNgw_DyG @ 2021-09-11 09:54:34
@Wang1006 开O2能过(真是个天才啊你