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  1. #include<iostream>
  2. #include<cstdlib>
  3. #include<cstdio>
  4. #include<cstring>
  5. #include<algorithm>
  6. using namespace std;
  7. long long int segtree[4100000];
  8. long long int lazy[4100000];
  9. void updatetree(int low,int high,int value,int qlow,int qhigh,int pos);
  10. long long int addtree(int low,int high,int qlow,int qhigh,int pos);
  11. int main()
  12.    {
  13.        ios::sync_with_stdio(false);
  14.        int t,b;
  15.        long long int  n,c,p,q,v,i;
  16.        cin>>t;
  17.        while(t--)
  18.        {
  19.                   cin>>n>>c;
  20.            for(i=0;i<450000;i++)
  21.            {
  22.                lazy[i]=0;
  23.                segtree[i]=0;
  24.            }
  25.  
  26.  
  27.            for(i=0;i<c;i++)
  28.            {
  29.             cin>>b;
  30.             if(b==0)
  31.             {
  32.                 cin>>p>>q>>v;
  33.                updatetree(0,n-1,v,p-1,q-1,0);
  34.             }
  35.            else
  36.             {
  37.                 cin>>p>>q;
  38.  
  39.                 cout<<addtree(0,n-1,p-1,q-1,0)<<"\n";
  40.             }
  41.            }
  42.        }
  43.        return 0;
  44.    }
  45.  
  46.  
  47. void updatetree(int low,int high,int value,int qlow,int qhigh,int pos)
  48.    {
  49.        if(high < qlow||low>high||qhigh<low)
  50.         return;
  51.        if(lazy[pos]!=0)                          
  52.         {
  53.             segtree[pos]+=lazy[pos];   
  54.             if(low!=high)                        
  55.               {
  56.               lazy[2*pos+1]+=lazy[pos]/2;       
  57.               lazy[2*pos+2]+=lazy[pos]/2;
  58.               }
  59.               lazy[pos]=0;                             
  60.         }
  61.  
  62.         if(qlow<=low&&qhigh>=high)
  63.         {
  64.             segtree[pos]+=value*(high-low+1);          
  65.  
  66.             if(low!=high)                        
  67.             {                                    
  68.                 lazy[2*pos+1]+=(value*(high-low+1))/2;
  69.                 lazy[2*pos+2]+=(value*(high-low+1))/2;
  70.             }
  71.           return ;
  72.         }
  73.         //if partial overlaps
  74.         long long int mid;
  75.         mid=(low+high)/2;
  76.         updatetree(low,mid,value,qlow,qhigh,2*pos+1);
  77.         updatetree(mid+1,high,value,qlow,qhigh,2+pos+2);
  78.         segtree[pos]=(segtree[2*pos+1]+segtree[2*pos+2]);
  79.    }
  80.  
  81. long long int addtree(int low,int high,int qlow,int qhigh,int pos)
  82.       {
  83.  
  84.       if(lazy[pos]!=0)
  85.         {
  86.         segtree[pos]+=lazy[pos];          
  87.         if(low!=high)
  88.          {
  89.           lazy[2*pos+1]+=lazy[pos]/2;                   
  90.           lazy[2*pos+2]+=lazy[pos]/2;
  91.          }
  92.          lazy[pos]=0;
  93.         }
  94.       if(qlow>high||qhigh<low||high<low||qhigh<qlow)    
  95.       return 0;
  96.  
  97.      if(qlow<=low&&qhigh>=high)
  98.      {
  99.          return segtree[pos];
  100.      }
  101.  
  102.     long long int mid=(low+high)/2;
  103.     long long int q,y;
  104.     q=addtree(low,mid,qlow,qhigh,2*pos+1);
  105.     y=addtree(mid+1,high,qlow,qhigh,2*pos+2);
  106.     return q+y;
  107.       }
  108.  
Runtime error #stdin #stdout 0.02s 67520KB
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https://ideone.com/3bV9eZ
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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