Submission #265394

#	Time	Username	Problem	Language	Result	Execution time	Memory
265394		TadijaSebez	Nuclearia (CEOI15_nuclearia)	C++11	30 / 100	1085 ms	104444 KiB

nuclearia

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N=200050;
int x[N],y[N],a[N],b[N];
int xl[N],xr[N],yl[N],yr[N];
int dist(int x1,int y1,int x2,int y2){return max(abs(x1-x2),abs(y1-y2));}
int get(int i,int X,int Y){return max((ll)0,a[i]-(ll)b[i]*dist(x[i],y[i],X,Y));}
int main(){
	int H,W,n,q;
	scanf("%i %i %i",&H,&W,&n);
	for(int i=1;i<=n;i++)scanf("%i %i %i %i",&x[i],&y[i],&a[i],&b[i]);
	scanf("%i",&q);
	for(int i=1;i<=q;i++)scanf("%i %i %i %i",&xl[i],&yl[i],&xr[i],&yr[i]);
	if(H>W){
		swap(H,W);
		for(int i=1;i<=n;i++)swap(x[i],y[i]);
		for(int i=1;i<=q;i++)swap(xl[i],yl[i]),swap(xr[i],yr[i]);
	}
	vector<ll> fir(W+2,0),add(W+2,0);
	vector<vector<ll>> cell(H+1,vector<ll>(W+1,0));
	for(int i=1;i<=n;i++){
		if(get(i,0,y[i])&&(ll)n*W<=100000000){
			for(int j=1;j<=W;j++)fir[j]+=get(i,0,j);
		}
	}
	for(int i=1;i<=H;i++){
		for(int o=1;o<=n;o++){
			int dif=get(o,i,y[o])-get(o,i-1,y[o]);
			if(dif!=0){
				int rng=i<=x[o]?x[o]-i:i-x[o]-1;
				add[max(1,y[o]-rng)]+=dif;
				add[min(W+1,y[o]+rng+1)]-=dif;
			}
		}
		ll sum=0;
		for(int j=1;j<=W;j++){
			sum+=add[j];
			cell[i][j]=sum+fir[j];
		}
	}
	for(int i=1;i<=H;i++)
		for(int j=1;j<=W;j++)
			cell[i][j]+=cell[i-1][j]+cell[i][j-1]-cell[i-1][j-1];
	for(int i=1;i<=q;i++){
		ll ans=cell[xr[i]][yr[i]]-cell[xl[i]-1][yr[i]]-cell[xr[i]][yl[i]-1]+cell[xl[i]-1][yl[i]-1];
		ll sz=(xr[i]-xl[i]+1)*(yr[i]-yl[i]+1);
		ll out=ans/sz;
		if((ans%sz)*2>=sz)out++;
		printf("%lld\n",out);
	}
	return 0;
}

Compilation message (stderr)

nuclearia.cpp: In function 'int main()':
nuclearia.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 |  scanf("%i %i %i",&H,&W,&n);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~
nuclearia.cpp:12:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |  for(int i=1;i<=n;i++)scanf("%i %i %i %i",&x[i],&y[i],&a[i],&b[i]);
      |                       ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nuclearia.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |  scanf("%i",&q);
      |  ~~~~~^~~~~~~~~
nuclearia.cpp:14:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   14 |  for(int i=1;i<=q;i++)scanf("%i %i %i %i",&xl[i],&yl[i],&xr[i],&yr[i]);
      |                       ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 2 / 2
• Subtask 3: 3 / 3
• Subtask 4: 2 / 2
• Subtask 5: 6 / 6
• Subtask 6: 4 / 4
• Subtask 7: 6 / 6
• Subtask 8: 4 / 4
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10
• Subtask 11: 0 / 15
• Subtask 12: 0 / 10
• Subtask 13: 0 / 12
• Subtask 14: 0 / 8