| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 55954 |
2018-07-09T08:17:50 Z |
red1108 |
None (KOI17_shell) |
C++17 |
|
369 ms |
47332 KB |
#include <iostream>
#include <stdio.h>
using namespace std;
long long int dp[1600][1600], seg[1600][6000], input[1600][1600],ans;
long long int n, si=1;
long long query(int x, int y)
{
long long int ret=0;
y=y+si-1;
while(y)
{
ret+=seg[x][y];
y/=2;
}
return ret;
}
void gang(int x, int v, int l, int r, int s, int e, int t)
{
if(l>r||e<l||r<s)
return ;
if(s<=l&&r<=e)
{
seg[x][v]+=t;
return ;
}
gang(x,v*2,l,(l+r)/2,s,e,t);
gang(x,v*2+1,((l+r)/2)+1,r,s,e,t);
}
int main()
{
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
long long int i, j,k,inx,iny,s,e,d;
char ina;
scanf("%lld", &n);
while(si<n)
si*=2;
for(i=1; i<=n; i++)
{
for(j=1; j<=n; j++)
{
scanf("%lld", &input[i][j]);
dp[i][j]=max(dp[i-1][j],dp[i][j-1])+input[i][j];
ans=ans+dp[i][j];
}
}
printf("%lld\n", ans);
for(k=1; k<=n; k++)
{
scanf("\n%c %lld %lld",&ina,&inx,&iny);
if(ina=='U')
{
d=1;
s=iny;
i=iny+1;
while(i<=n&&dp[inx-1][i]+query(inx-1,i)<=dp[inx][i-1]+query(inx,i-1)) i++;
e=i-1;
gang(inx,1,1,si,s,e,d);
ans=ans+(e-s+1)*d;
for(i=inx+1; i<=n; i++)
{
while(dp[i-1][s]+query(i-1,s)<=dp[i][s-1]+query(i,s-1))
s++;
if(s>e)
break;
for(j=e+1; j<=n; j++)
{
if(dp[i-1][j]+query(i-1,j)<=dp[i][j-1]+query(i,j-1)) continue;
else break;
}
e=j-1;
if(s>e)
break;
gang(i,1,1,si,s,e,d);
ans=ans+(e-s+1)*d;
}
}
else
{
d=-1;
s=iny;
for(i=iny+1; i<=n; i++)
{
if(dp[inx-1][i]+query(inx-1,i)<dp[inx][i-1]+query(inx,i-1))
continue;
else
break;
}
e=i-1;
gang(inx,1,1,si,s,e,d);
ans=ans+(e-s+1)*d;
for(i=inx+1; i<=n; i++)
{
while(s<=n&&dp[i-1][s]+query(i-1,s)>dp[i][s-1]+query(i,s-1))
s++;
if(s>e)
break;
for(j=e+1; j<=n; j++)
{
if(dp[i-1][j]+query(i-1,j)<dp[i][j-1]+query(i,j-1)) continue;
else break;
}
e=j-1;
if(s>e)
break;
gang(i,1,1,si,s,e,d);
ans=ans+(e-s+1)*d;
}
}
printf("%lld\n", ans);
}
}
Compilation message
shell.cpp: In function 'int main()':
shell.cpp:35:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &n);
~~~~~^~~~~~~~~~~~
shell.cpp:42:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld", &input[i][j]);
~~~~~^~~~~~~~~~~~~~~~~~~~~~
shell.cpp:50:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("\n%c %lld %lld",&ina,&inx,&iny);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
1912 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
369 ms |
47332 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
1912 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
