提出 #42235100

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ソースコード 拡げる

#include<cstdio>
#include<cstring>
#include<deque>
#define N 210000
#define NN 410000
#define fep(i,x,y) for(int i=x;i<=y;i++)
#define feq(i,x,y) for(int i=x;i>=y;i--)
using namespace std;
typedef long long LL;
const LL mod=998244353;
struct node{
	LL d/*差值*/;//上减下 
	int siz;
	node(LL td){d=td;}
	node(LL td,int ts){d=td;siz=ts;}
};LL zsum=0,ans=0,cnt=0;
inline bool operator<(node x,node y){return x.d<y.d;}
inline bool operator>(node x,node y){return x.d>y.d;}
deque<node> fuck;
int n;LL la,lb;//lazy标记 
LL fa[N],fb[N];
inline LL zheng(LL x){return (x%mod+mod)%mod;}
int main(){
	scanf("%d",&n);
	fep(i,1,n)scanf("%lld",&fa[i]);
	fep(i,1,n)scanf("%lld",&fb[i]);
	fep(i,1,n){
		LL ta=fa[i],tb=fb[i];cnt=(cnt+ta+tb)%mod;
		//初次处理。
		la+=ta;lb+=tb;
		node cel=node(-tb-la+lb,1),flo=node(ta-la+lb,1);
		zsum+=(i+i-2)*(ta+tb);zsum=(zsum+ta*3+tb*3)%mod;
		deque<node>::iterator x=fuck.begin();
		while(x!=fuck.end() && (x->d)+la-lb<=-tb){
			zsum-=(-((x->d)+la-lb)-tb)%mod*x->siz;zsum=(zsum%mod+mod)%mod;
			cel.siz+=x->siz;x++;fuck.pop_front();
		}
		x=fuck.end();
		if(x!=fuck.begin()){
			x--;
			while((x->d)+la-lb>=ta){
				zsum-=(((x->d)+la-lb)-ta)%mod*x->siz;zsum=(zsum%mod+mod)%mod;
				flo.siz+=x->siz;
				if(x!=fuck.begin()){x--;fuck.pop_back();}
				else {fuck.pop_back();break;}
			}
		}
		fuck.push_front(cel);fuck.push_back(flo);
		ans=(ans+zsum)%mod;
	}
	printf("%lld\n",zheng((ans-cnt)*2-cnt));
	return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:24:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   24 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
./Main.cpp:25:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   25 |  fep(i,1,n)scanf("%lld",&fa[i]);
      |            ~~~~~^~~~~~~~~~~~~~~
./Main.cpp:26:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   26 |  fep(i,1,n)scanf("%lld",&fb[i]);
      |            ~~~~~^~~~~~~~~~~~~~~

ジャッジ結果