이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "wombats.h"
#include <vector>
#include <cmath>
#include <cstdio>
using namespace std;
typedef vector<vector<int>> tbl;
int r,c;
int opt[200][200];
tbl combine(const tbl &a, const tbl &b) {
tbl tmp(c,vector<int>(c,1e9));
for (int sz=-c+1;sz<c;sz++) {
for (int i=0;i<c;i++) {
int j=i+sz;
if (j<0||j>=c) continue;
for (int k=(j==0?0:opt[i][j-1]);k<=(i==c-1?c-1:opt[i+1][j]);k++) {
if (a[i][k]+b[k][j]<tmp[i][j]) {
tmp[i][j]=a[i][k]+b[k][j];
opt[i][j]=k;
}
}
}
}
return tmp;
}
int h[5000][200];
int v[5000][200];
int qsh[5000][200];
//0 <= row < r-1
tbl build(int row) {
tbl tmp(c,vector<int>(c,1e9));
int da,db;
for (int sz=-c+1;sz<c;sz++) {
for (int i=0;i<c;i++) {
int j=i+sz;
if (j<0||j>=c) continue;
for (int k=(j==0?0:opt[i][j-1]);k<=(i==c-1?c-1:opt[i+1][j]);k++) {
da=abs((k==0?0:qsh[row][k-1])-(i==0?0:qsh[row][i-1]));
db=abs((k==0?0:qsh[row+1][k-1])-(j==0?0:qsh[row+1][j-1]));
if (da+db+v[row][k]<tmp[i][j]) {
tmp[i][j]=da+db+v[row][k];
opt[i][j]=k;
}
}
}
}
return tmp;
}
tbl seg[30100];
void buildseg(int id,int ll,int rr) {
if (ll+1==rr) {
seg[id]=build(ll);
return;
}
int m=(ll+rr)>>1;
buildseg(id*2,ll,m);
buildseg(id*2+1,m,rr);
seg[id]=combine(seg[id*2],seg[id*2+1]);
}
void update(int id,int ll,int rr,int k) {
if (ll+1==rr) {
seg[id]=build(ll);
return;
}
int m=(ll+rr)>>1;
if (k<m) update(id*2,ll,m,k);
else update(id*2+1,m,rr,k);
seg[id]=combine(seg[id*2],seg[id*2+1]);
}
void init(int R, int C, int H[5000][200], int V[5000][200]) {
r=R;
c=C;
for (int i=0;i<R;i++) {
for (int j=0;j<c;j++) {
h[i][j]=H[i][j];
v[i][j]=V[i][j];
}
}
for (int i=0;i<r;i++) {
qsh[i][0]=h[i][0];
for (int j=1;j<c-1;j++) {
qsh[i][j]=qsh[i][j-1]+h[i][j];
}
}
buildseg(1,0,r-1);
}
void changeH(int P, int Q, int W) {
h[P][Q]=W;
qsh[P][0]=h[P][0];
for (int j=1;j<c-1;j++) {
qsh[P][j]=qsh[P][j-1]+h[P][j];
}
update(1,0,r-1,P);
if (P) update(1,0,r-1,P-1);
}
void changeV(int P, int Q, int W) {
v[P][Q]=W;
update(1,0,r-1,P);
}
int escape(int V1, int V2) {
return seg[1][V1][V2];
}
컴파일 시 표준 에러 (stderr) 메시지
grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
int res;
^~~
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