結果
| 問題 |
No.957 植林
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-12-27 08:37:12 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,199 bytes |
| コンパイル時間 | 527 ms |
| コンパイル使用メモリ | 47,232 KB |
| 実行使用メモリ | 22,256 KB |
| 最終ジャッジ日時 | 2024-10-06 23:58:02 |
| 合計ジャッジ時間 | 6,297 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 3 WA * 12 TLE * 1 -- * 29 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:75:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
75 | scanf("%d%d", &n, &m);
| ~~~~~^~~~~~~~~~~~~~~~
main.cpp:76:72: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
76 | for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) scanf("%d", &g[i][j]);
| ~~~~~^~~~~~~~~~~~~~~~
main.cpp:77:43: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
77 | for (int i = 1; i <= n; i++) scanf("%d", &r[i]);
| ~~~~~^~~~~~~~~~~~~
main.cpp:78:43: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
78 | for (int i = 1; i <= m; i++) scanf("%d", &c[i]);
| ~~~~~^~~~~~~~~~~~~
ソースコード
#include <stdio.h>
#include <vector>
#include <queue>
using namespace std;
#define PB push_back
constexpr int kN = int(1E5 + 10), kInf = int(1E9 + 10), kNN = int(3E2 + 10);
struct Edge {
int to, rev, cap;
};
vector<Edge> graph[kN];
int dep[kN], went[kN], iter[kN];
void AddEdge(int u, int v, int c) {
graph[u].PB({v, int(graph[v].size()), c});
graph[v].PB({u, int(graph[u].size()) - 1, 0});
return ;
}
void bfs(int s, int t) {
int nxt;
queue<int> q;
q.push(s);
iter[s] = dep[s] = 0;
went[s] = t;
while (!q.empty()) {
nxt = q.front();
q.pop();
for (Edge i : graph[nxt]) if (went[i.to] != t && i.cap > 0) {
q.push(i.to);
went[i.to] = t;
dep[i.to] = dep[nxt] + 1;
iter[i.to] = 0;
}
}
return ;
}
int dfs(int u, int t, int nv) {
if (u == t) return nv;
int temp;
for (int &i = iter[u]; i < int(graph[u].size()); i++) {
Edge& nxt = graph[u][i];
if (nxt.cap > 0 && dep[nxt.to] > dep[u]) {
temp = dfs(nxt.to, t, min(nv, nxt.cap));
if (temp > 0) {
nxt.cap -= temp;
graph[nxt.to][nxt.rev].cap += temp;
return temp;
}
}
}
return 0;
}
long long int dinic(int s, int t) {
long long int ans = 0, f;
int cnt = 0;
for (int i = 0; i < kN; i++) went[i] = cnt;
while (true) {
bfs(s, ++cnt);
if (went[s] != went[t]) break;
while ((f = dfs(s, t, kInf)) > 0) ans += f;
}
return ans;
}
int g[kNN][kNN], r[kNN], c[kNN];
int main() {
int n, m, s, t, nxt = 1;
long long int ans = 0;
scanf("%d%d", &n, &m);
for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) scanf("%d", &g[i][j]);
for (int i = 1; i <= n; i++) scanf("%d", &r[i]);
for (int i = 1; i <= m; i++) scanf("%d", &c[i]);
s = 0;
t = n * m + n + m + 1;
for (int i = 1; i <= n; i++) ans += r[i];
for (int i = 1; i <= m; i++) ans += c[i];
for (int i = 1; i <= n; i++, nxt++) AddEdge(s, nxt, r[i]);
for (int i = 1; i <= m; i++, nxt++) AddEdge(s, nxt, c[i]);
for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++, nxt++) {
AddEdge(nxt, t, g[i][j]);
AddEdge(i, nxt, min(r[i], g[i][j]));
AddEdge(j + n, nxt, min(c[i], g[i][j]));
}
printf("%lld\n", ans - dinic(s, t));
}