#include <bits/stdc++.h>
using namespace std;
typedef long long lo;
typedef pair< lo,lo > PII;
typedef pair< lo,PII > PIII;
#define fi first
#define int long long
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)
const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 100000000000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 1005;
const lo mod = 1000000007;
int n,m,b[li],a[li][li],k,flag,t,mx[li];
int cev=-inf;
string s;
vector<PIII> v;
main(void){
scanf("%lld %lld",&n,&m);
for(int i=1;i<=m;i++)mx[i]=-inf;
FOR{
for(int j=1;j<=m;j++){
scanf("%lld",&a[i][j]);
}
}
FOR{
int gel=0;
for(int j=1;j<=m;j++){
gel--;
mx[j]--;
mx[j]=max(mx[j],a[i][j]);
gel=max(gel,mx[j]);
cev=max(cev,abs(a[i][j]-gel));
}
gel=0;
for(int j=m;j>=1;j--){
gel--;
//~ mx[j]--;
mx[j]=max(mx[j],a[i][j]);
gel=max(gel,mx[j]);
cev=max(cev,abs(a[i][j]-gel));
}
}
for(int i=1;i<=m;i++)mx[i]=-inf;
for(int i=n;i>=1;i--){
int gel=0;
for(int j=1;j<=m;j++){
gel--;
mx[j]--;
mx[j]=max(mx[j],a[i][j]);
gel=max(gel,mx[j]);
cev=max(cev,abs(a[i][j]-gel));
}
gel=0;
for(int j=m;j>=1;j--){
gel--;
//~ mx[j]--;
mx[j]=max(mx[j],a[i][j]);
gel=max(gel,mx[j]);
cev=max(cev,abs(a[i][j]-gel));
}
}
printf("%lld\n",cev-1);
return 0;
}
Compilation message
maxcomp.cpp:32:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main(void){
^
maxcomp.cpp: In function 'int main()':
maxcomp.cpp:33:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld",&n,&m);
~~~~~^~~~~~~~~~~~~~~~~~~
maxcomp.cpp:37:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld",&a[i][j]);
~~~~~^~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
380 KB |
Output is correct |
9 |
Correct |
5 ms |
504 KB |
Output is correct |
10 |
Correct |
5 ms |
564 KB |
Output is correct |
11 |
Correct |
5 ms |
632 KB |
Output is correct |
12 |
Correct |
5 ms |
504 KB |
Output is correct |
13 |
Correct |
6 ms |
632 KB |
Output is correct |
14 |
Correct |
5 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
380 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |
11 |
Correct |
5 ms |
376 KB |
Output is correct |
12 |
Correct |
5 ms |
504 KB |
Output is correct |
13 |
Correct |
5 ms |
564 KB |
Output is correct |
14 |
Correct |
5 ms |
632 KB |
Output is correct |
15 |
Correct |
5 ms |
504 KB |
Output is correct |
16 |
Correct |
6 ms |
632 KB |
Output is correct |
17 |
Correct |
5 ms |
504 KB |
Output is correct |
18 |
Correct |
179 ms |
8696 KB |
Output is correct |
19 |
Correct |
186 ms |
16760 KB |
Output is correct |
20 |
Correct |
172 ms |
8696 KB |
Output is correct |
21 |
Correct |
180 ms |
8696 KB |
Output is correct |
22 |
Correct |
187 ms |
8440 KB |
Output is correct |
23 |
Correct |
185 ms |
8568 KB |
Output is correct |
24 |
Correct |
146 ms |
8056 KB |
Output is correct |