Submission #3553137
Source Code Expand
#include<iostream> #include<cstdio> #include<cstring> #define int long long #define inf 100000000000000007 using namespace std; int n,m,a[303][303],b[303][303],c[303][303],ans; int ans1[303],ans2[303],ans3[303],ans4[303]; int d[100100]; int ask(int x){ int res=-inf,dp=0; for(int i=1;i<=x;i++) { dp+=d[i]; if(dp>res) res=dp; if(dp<0) dp=0; } return res; } signed main(){ cin>>n>>m; for(int i=1;i<=n;i++) for(int j=1;j<=m;j++){ cin>>a[i][j]; b[i][j]=b[i-1][j]+a[i][j]; c[i][j]=c[i][j-1]+a[i][j]; } memset(ans1,0xcf,sizeof(ans1)); memset(ans2,0xcf,sizeof(ans2)); memset(ans3,0xcf,sizeof(ans3)); memset(ans4,0xcf,sizeof(ans4)); for(int i=1;i<=n;i++){ for(int j=i;j>=1;j--){ for(int k=1;k<=m;k++) d[k]=b[i][k]-b[j-1][k]; ans1[i]=max(ans1[i],ask(m)); } ans1[i]=max(ans1[i],ans1[i-1]); // cout<<ans1[i]<<" "; } // puts(""); for(int i=n;i>=1;i--){ for(int j=i;j<=n;j++){ for(int k=1;k<=m;k++) d[k]=b[j][k]-b[i-1][k]; ans2[i]=max(ans2[i],ask(m)); } ans2[i]=max(ans2[i],ans2[i+1]); // cout<<ans2[i]<<" "; } // puts(""); for(int i=1;i<=m;i++){ for(int j=i;j>=1;j--){ for(int k=1;k<=n;k++) d[k]=c[k][i]-c[k][j-1]; ans3[i]=max(ans3[i],ask(n)); } ans3[i]=max(ans3[i],ans3[i-1]); // cout<<ans3[i]<<" "; } // puts(""); for(int i=m;i>=1;i--){ for(int j=i;j<=m;j++){ for(int k=1;k<=n;k++) d[k]=c[k][j]-c[k][i-1]; ans4[i]=max(ans4[i],ask(n)); } ans4[i]=max(ans4[i],ans4[i+1]); // cout<<ans4[i]<<" "; } // puts(""); ans=-inf; for(int i=1;i<n;i++) ans=max(ans,ans1[i]+ans2[i+1]); for(int i=1;i<m;i++) ans=max(ans,ans3[i]+ans4[i+1]); cout<<ans; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - 庭園 |
User | luogu_bot2 |
Language | C++ (GCC 5.4.1) |
Score | 0 |
Code Size | 2011 Byte |
Status | WA |
Exec Time | 148 ms |
Memory | 2304 KB |
Judge Result
Set Name | Sample | Subtask1 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 50 | 0 / 50 | ||||||
Status |
|
|
|
Set Name | Test Cases |
---|---|
Sample | sample0.txt, sample1.txt, sample2.txt, sample3.txt |
Subtask1 | subtask0_0.txt, subtask0_1.txt, subtask0_10.txt, subtask0_11.txt, subtask0_12.txt, subtask0_13.txt, subtask0_14.txt, subtask0_2.txt, subtask0_3.txt, subtask0_4.txt, subtask0_5.txt, subtask0_6.txt, subtask0_7.txt, subtask0_8.txt, subtask0_9.txt |
All | sample0.txt, sample1.txt, sample2.txt, sample3.txt, subtask0_0.txt, subtask0_1.txt, subtask0_10.txt, subtask0_11.txt, subtask0_12.txt, subtask0_13.txt, subtask0_14.txt, subtask0_2.txt, subtask0_3.txt, subtask0_4.txt, subtask0_5.txt, subtask0_6.txt, subtask0_7.txt, subtask0_8.txt, subtask0_9.txt, subtask1_0.txt, subtask1_1.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_2.txt, subtask1_3.txt, subtask1_4.txt, subtask1_5.txt, subtask1_6.txt, subtask1_7.txt, subtask1_8.txt, subtask1_9.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample0.txt | WA | 1 ms | 256 KB |
sample1.txt | WA | 1 ms | 256 KB |
sample2.txt | WA | 1 ms | 256 KB |
sample3.txt | WA | 1 ms | 256 KB |
subtask0_0.txt | WA | 3 ms | 640 KB |
subtask0_1.txt | WA | 3 ms | 512 KB |
subtask0_10.txt | WA | 3 ms | 640 KB |
subtask0_11.txt | WA | 2 ms | 512 KB |
subtask0_12.txt | WA | 3 ms | 640 KB |
subtask0_13.txt | WA | 2 ms | 640 KB |
subtask0_14.txt | WA | 2 ms | 512 KB |
subtask0_2.txt | WA | 2 ms | 512 KB |
subtask0_3.txt | WA | 3 ms | 640 KB |
subtask0_4.txt | WA | 2 ms | 512 KB |
subtask0_5.txt | WA | 3 ms | 640 KB |
subtask0_6.txt | WA | 3 ms | 640 KB |
subtask0_7.txt | WA | 3 ms | 512 KB |
subtask0_8.txt | WA | 2 ms | 512 KB |
subtask0_9.txt | WA | 2 ms | 640 KB |
subtask1_0.txt | WA | 123 ms | 2048 KB |
subtask1_1.txt | WA | 137 ms | 2048 KB |
subtask1_10.txt | WA | 113 ms | 2176 KB |
subtask1_11.txt | WA | 148 ms | 2176 KB |
subtask1_12.txt | WA | 127 ms | 2176 KB |
subtask1_13.txt | WA | 146 ms | 2176 KB |
subtask1_14.txt | WA | 110 ms | 2304 KB |
subtask1_2.txt | WA | 148 ms | 2176 KB |
subtask1_3.txt | WA | 114 ms | 2048 KB |
subtask1_4.txt | WA | 115 ms | 2176 KB |
subtask1_5.txt | WA | 145 ms | 2176 KB |
subtask1_6.txt | WA | 135 ms | 2176 KB |
subtask1_7.txt | WA | 128 ms | 2176 KB |
subtask1_8.txt | WA | 147 ms | 2304 KB |
subtask1_9.txt | WA | 116 ms | 2048 KB |