@[linyicheng2022](/user/659471) 没开```long long```
by sunrise1024 @ 2022-11-11 22:35:46
@[sunrise1024](https://www.luogu.com.cn/user/368884) 谢谢啦
by Sky_city @ 2022-11-11 22:44:48
可是开了```long long```后仍 $\color{red}WA$ 啊
```cpp
#include <bits/stdc++.h>
#define ll long long
using namespace std;
ll bit[1000010];
inline ll lowbit(ll x){
return x&-x;
}
inline void add(ll n,ll i,ll value){
while(i<=n)
{
bit[i]+=value;
i+=lowbit(i);
}
}
inline ll sum(ll i){
ll sum=0;
while(i>0)
{
sum+=bit[i];
i-=lowbit(i);
}
return sum;
}
inline void op1(ll n,ll x,ll k){
add(n,x,k);
}
inline void op2(ll l,ll r){
printf("%lld\n",sum(r)-sum(l-1));
}
int main(){
ll n,m,value,op,x,y;
scanf("%lld%lld",&n,&m);
for(ll i=1;i<=n;i++)
{
scanf("%lld",&value);
add(n,i,value);
}
for(ll i=1;i<=n;i++)
{
scanf("%lld%lld%lld",&op,&x,&y);
if (op==1) op1(n,x,y);
if (op==2) op2(x,y);
}
return 0;
}
```
？？？
by Sky_city @ 2022-11-11 22:50:45
知道了，是$m$写成了$n$,
by Sky_city @ 2022-11-11 22:54:45