Submission #18143

#TimeUsernameProblemLanguageResultExecution timeMemory
18143tlwpdusOn grid (kriii2_O)C++98
0 / 4
0 ms118580 KiB
#include<stdio.h> #include<algorithm> using namespace std; int r, c; int map[310][310]; int dyn[310][310]; int psum[310][310]; int E[310][310][310]; void process() { int i, j, k; for (i=1;i<=r;i++) for (j=1;j<=c;j++) psum[i][j] = psum[i-1][j]+psum[i][j-1]-psum[i-1][j-1]+map[i][j]; for (i=1;i<=r;i++) for (j=1;j<=c;j++) { for (k=1;k<i;k++) E[i][j][k] = max(E[i][j-1][k],dyn[k][j-1]+psum[k][j-1]-psum[i][j-1]); dyn[i][j] = psum[i][j]; for (k=1;k<i;k++) dyn[i][j] = max(dyn[i][j],E[i][j][k]+psum[i][j]-psum[k][j]); } printf("%d\n",dyn[r][c]); } void input() { int i, j; scanf("%d %d",&r,&c); for (i=1;i<=r;i++) for (j=1;j<=c;j++) scanf("%d",&map[i][j]); } int main() { input(); process(); return 0; }
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