이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
using namespace std;
const int N = 2e5+5;
long long s,t;
struct A
{
long long l,r;
long long ans;
};
A sm[N*4];
long long lz[N*4];
void apply(long long now,long long l,long long r)
{
if(!lz[now]) return ;
sm[now].l+=lz[now];
sm[now].r+=lz[now];
if(l!=r) lz[now<<1]+=lz[now],lz[now<<1|1]+=lz[now];
lz[now] = 0;
}
A Merge(A a,A b)
{
if(a.r<b.l) return {a.l,b.r,a.ans+b.ans-s*(b.l-a.r)};
else return {a.l,b.r,a.ans+b.ans+t*(a.r-b.l)};
}
void upd(long long l,long long r,long long ll,long long rr,long long now,long long v)
{
apply(now,l,r);
if(l>rr||r<ll)return ;
if(l>=ll&&r<=rr)
{
lz[now]+=v;
apply(now,l,r);
return ;
}
long long mid = (l+r) >> 1;
upd(l,mid,ll,rr,now<<1,v),upd(mid+1,r,ll,rr,now<<1|1,v);
sm[now] = Merge(sm[now<<1],sm[now<<1|1]);
// printf("%lld %lld %lld %lld %lld\n",l,r,sm[now].l,sm[now].r,sm[now].ans);
}
int main()
{
long long n,q,l,r,x;
scanf("%lld %lld %lld %lld",&n,&q,&s,&t);
for(long long i=0;i<=n;i++) scanf("%lld",&x),upd(0,n,i,i,1,x);
// printf("%lld\n",sm[1].ans);
while(q--)
{
scanf("%lld %lld %lld",&l,&r,&x);
upd(0,n,l,r,1,x);
printf("%lld\n",sm[1].ans);
}
return 0;
}
/*
3 5 1 2
0 4 1 8
1 2 2
1 1 -2
2 3 5
1 2 -1
1 3 5
*/
컴파일 시 표준 에러 (stderr) 메시지
foehn_phenomena.cpp: In function 'int main()':
foehn_phenomena.cpp:43:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld %lld %lld",&n,&q,&s,&t);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foehn_phenomena.cpp:44:51: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(long long i=0;i<=n;i++) scanf("%lld",&x),upd(0,n,i,i,1,x);
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
foehn_phenomena.cpp:48:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld %lld",&l,&r,&x);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
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