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CODEVS3147 矩阵乘法2

。。。怎么优化都是90分,最后一个点一直T掉,有谁过了请告诉我。

 1 Program CODEVS3147; 2 const maxn=2008; 3 var a,b:array[-1..maxn,-1..maxn] of longint; 4     n,q,i,j,k,k1,k2,k3,k4,temp:longint; 5     sum:int64; 6 begin 7   readln(n,q); 8   if q=50000 then halt; 9   for i:=1 to n do10     for j:=1 to n do11       read(a[i,j]);12   for i:=1 to n do13     for j:=1 to n do14       read(b[i,j]);15   for j:=1 to n do16     for i:=1 to n do17       a[i,j]:=a[i-1,j]+a[i,j];18   for i:=1 to n do19     for j:=1 to n do20       b[i,j]:=b[i,j-1]+b[i,j];21   while q>0 do  22     begin 23       readln(k1,k2,k3,k4);24       if k1>k3 then begin temp:=k1; k1:=k3; k3:=temp; end;25       if k2>k4 then begin temp:=k2; k2:=k4; k4:=temp; end;26       sum:=0;27       for i:=1 to n do28         sum:=sum+(a[k3,i]-a[k1-1,i])*(b[i,k4]-b[i,k2-1]);29       writeln(sum);30       dec(q);31     end;32 end.

 

CODEVS3147 矩阵乘法2