| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 350926 |
2021-01-19T09:57:10 Z |
MHNaderi |
Spiral (BOI16_spiral) |
C++14 |
|
76 ms |
79084 KB |
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define all(x) x.begin() , x.end()
#define file_init freopen("input.txt", "r+", stdin); freopen("output.txt", "w+", stdout);
#define random_init mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
#define int long long
#define pb push_back
#define pii pair<int,int>
#define F first
#define S second
const int maxn=3e3,INF=1e18;
int mark[maxn][maxn],dp[maxn][maxn];
pii pls(pii a , pii b){
return {a.F+b.F,a.S+b.S};
}
int32_t main(){
ios_base::sync_with_stdio(0);
int n;
cin>>n;
pii dir[4]={ {0,+1} , {+1,0} , {0,-1} , {-1,0} };
pii go={n+1,n+1};
int cnt=1;
int x=1,w=0;
while(cnt < (2*n+1)*(2*n+1)){
if(w>1){
w=0;
x++;
}
int direction=((x-1)%2)*2+w;
int xx=x;
while(xx--){
mark[go.F][go.S]=cnt++;
go=pls(go,dir[direction]);
}
w++;
}
// for(int i=1;i<=2*n+1;i++){
// for(int j=1;j<=2*n+1;j++)
// cout<<mark[i][j]<<" ";
// cout<<'\n';
// }
for(int i=0;i<=2*n+1;i++){
dp[0][i]=dp[i][0]=0;
}
for(int i=1;i<=2*n+1;i++){
for(int j=1;j<=2*n+1;j++){
dp[i][j]=dp[i-1][j]+dp[i][j-1]-dp[i-1][j-1]+mark[i][j];
// cout<<dp[i][j]<<' ';
}
// cout<<'\n';
}
int q,mod=1e9+7;
cin>>q;
while(q--){
int x1,x2,y1,y2;
cin>>y1>>x1>>y2>>x2;
x1+=n+1;
x2+=n+1;
y1+=n+1;
y2+=n+1;
cout<<(dp[x2][y2]-dp[x1-1][y2]-dp[x2][y1-1]+dp[x1-1][y1-1]+mod)%mod;
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
76 ms |
79084 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
8 ms |
492 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
76 ms |
79084 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
8 ms |
492 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
76 ms |
79084 KB |
Output isn't correct |
