Submission #45252

#TimeUsernameProblemLanguageResultExecution timeMemory
45252ikura355Maxcomp (info1cup18_maxcomp)C++14
0 / 100
2 ms356 KiB
#include<bits/stdc++.h> using namespace std; const int maxn = 1e3 + 5; int n,m; long long p[maxn][maxn]; long long mx[maxn][maxn]; int main() { scanf("%d%d",&n,&m); for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) scanf("%lld",&p[i][j]); long long ans = -1; for(int x=1;x<=n;x++) { for(int y=1;y<=n;y++) { for(int i=1;i<=n;i++) { for(int j=1;j<=m;j++) { ans = max(ans, p[x][y] - p[i][j] -(abs(x-i)+abs(y-j)+1)); } } } } // for(int x=1;x<=n;x++) { // for(int y=1;y<=m;y++) { // mx[x][y] = -p[x][y] + x + y; // if(y!=1) mx[x][y] = max(mx[x][y], mx[x][y-1]); // if(x!=1) mx[x][y] = max(mx[x][y], mx[x-1][y]); // ans = max(ans, p[x][y] - x - y + mx[x][y] - 1); // } // } // for(int x=n;x>=1;x--) { // for(int y=1;y<=m;y++) { // mx[x][y] = -p[x][y] - x + y; // if(y!=1) mx[x][y] = max(mx[x][y], mx[x][y-1]); // if(x!=n) mx[x][y] = max(mx[x][y], mx[x+1][y]); // ans = max(ans, p[x][y] + x - y + mx[x][y] - 1); // } // } // for(int x=1;x<=n;x++) { // for(int y=m;y>=1;y--) { // mx[x][y] = -p[x][y] + x - y; // if(y!=m) mx[x][y] = max(mx[x][y], mx[x][y+1]); // if(x!=1) mx[x][y] = max(mx[x][y], mx[x-1][y]); // ans = max(ans, p[x][y] - x + y + mx[x][y] - 1); // } // } // for(int x=n;x>=1;x--) { // for(int y=m;y>=1;y--) { // mx[x][y] = -p[x][y] - x - y; // if(y!=m) mx[x][y] = max(mx[x][y], mx[x][y+1]); // if(x!=x) mx[x][y] = max(mx[x][y], mx[x+1][y]); // ans = max(ans, p[x][y] + x + y + mx[x][y] - 1); // } // } printf("%lld",ans); }

Compilation message (stderr)

maxcomp.cpp: In function 'int main()':
maxcomp.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
maxcomp.cpp:12:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) scanf("%lld",&p[i][j]);
                                                 ~~~~~^~~~~~~~~~~~~~~~~
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