Submission #2558723
Source Code Expand
// 基本テンプレート
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <string>
#include <cstring>
#include <deque>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <utility>
#include <algorithm>
#include <map>
#include <set>
#include <complex>
#include <cmath>
#include <limits>
#include <cfloat>
#include <climits>
#include <ctime>
#include <cassert>
#include <numeric>
#include <fstream>
#include <functional>
using namespace std;
#define rep(i,a,n) for(int (i)=(a); (i)<(n); (i)++)
#define repq(i,a,n) for(int (i)=(a); (i)<=(n); (i)++)
#define repr(i,a,n) for(int (i)=(a); (i)>=(n); (i)--)
#define debug(...) fprintf(stderr, __VA_ARGS__)
#define int long long int
template<typename T> void chmax(T &a, T b) {a = max(a, b);}
template<typename T> void chmin(T &a, T b) {a = min(a, b);}
template<typename T> void chadd(T &a, T b) {a = a + b;}
typedef pair<int, int> pii;
typedef long long ll;
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};
const ll INF = 1001001001001001LL;
const ll MOD = 1000000007LL;
struct Edge {
int from, to, cost;
Edge(int t, int c) : to(t), cost(c) {}
Edge(int f, int t, int c) : from(f), to(t), cost(c) {}
bool operator<(const Edge &e) const {
return cost < e.cost;
}
};
const int MAXN = 4010;
struct UnionFind {
int node[MAXN];
UnionFind() {
memset(node, -1, sizeof(node));
}
int find(int x) {
return node[x] < 0 ? x : node[x] = find(node[x]);
}
bool unite(int x, int y) {
x = find(x), y = find(y);
if(x == y) return false;
node[x] += node[y];
node[y] = x;
return true;
}
};
using Graph = vector< vector<Edge> >;
int max_edge[MAXN][MAXN];
void dfs(Graph &G, int cur, int par, int orig) {
int prev_max = max_edge[orig][cur];
for(auto e : G[cur]) {
if(e.to == par) continue;
chmax(max_edge[orig][e.to], max(prev_max, e.cost));
dfs(G, e.to, cur, orig);
}
}
UnionFind uf;
signed main() {
int N, M; cin >> N >> M;
vector<Edge> edges;
for(int i=0; i<M; i++) {
int u, v, cost; cin >> u >> v >> cost;
u--; v--;
edges.emplace_back(u, v, cost);
}
sort(edges.begin(), edges.end());
int sum = 0;
Graph MST(N);
for(int i=0; i<M; i++) {
Edge e = edges[i];
if(uf.unite(e.from, e.to)) {
MST[e.from].emplace_back(e.from, e.to , e.cost);
MST[e.to ].emplace_back(e.to, e.from, e.cost);
sum += e.cost;
}
}
for(int i=0; i<N; i++) dfs(MST, i, -1, i);
/*
for(int i=0; i<N; i++) {
for(int j=0; j<N; j++) {
printf("max_edge[%lld][%lld] = %lld\n", i+1, j+1, max_edge[i][j]);
}
}
*/
int Q; cin >> Q;
for(int i=0; i<Q; i++) {
int s, t; cin >> s >> t;
s--; t--;
// printf("max_edge = %lld\n", max_edge[s][t]);
cout << sum - max(max_edge[s][t], max_edge[t][s]) << endl;
}
return 0;
}
Submission Info
Submission Time |
|
Task |
A - Graph |
User |
tsutaj |
Language |
C++14 (GCC 5.4.1) |
Score |
700 |
Code Size |
3156 Byte |
Status |
AC |
Exec Time |
1084 ms |
Memory |
138088 KB |
Judge Result
Set Name |
Sample |
subtask1 |
subtask2 |
All |
Score / Max Score |
0 / 0 |
200 / 200 |
300 / 300 |
200 / 200 |
Status |
|
|
|
|
Set Name |
Test Cases |
Sample |
sample_1.txt, sample_2.txt |
subtask1 |
sample_2.txt, subtask_1_1.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_2.txt, subtask_1_3.txt, subtask_1_4.txt, subtask_1_5.txt, subtask_1_6.txt, subtask_1_7.txt, subtask_1_8.txt, subtask_1_9.txt |
subtask2 |
sample_1.txt, sample_2.txt, subtask_1_1.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_2.txt, subtask_1_3.txt, subtask_1_4.txt, subtask_1_5.txt, subtask_1_6.txt, subtask_1_7.txt, subtask_1_8.txt, subtask_1_9.txt, subtask_2_1.txt, subtask_2_2.txt, subtask_2_3.txt, subtask_2_4.txt, subtask_2_5.txt, subtask_2_6.txt, subtask_2_7.txt, subtask_2_8.txt |
All |
sample_1.txt, sample_2.txt, sample_1.txt, sample_2.txt, subtask_1_1.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_2.txt, subtask_1_3.txt, subtask_1_4.txt, subtask_1_5.txt, subtask_1_6.txt, subtask_1_7.txt, subtask_1_8.txt, subtask_1_9.txt, subtask_2_1.txt, subtask_2_2.txt, subtask_2_3.txt, subtask_2_4.txt, subtask_2_5.txt, subtask_2_6.txt, subtask_2_7.txt, subtask_2_8.txt, subtask_3_1.txt, subtask_3_2.txt, subtask_3_3.txt, subtask_3_4.txt, subtask_3_5.txt, subtask_3_6.txt, subtask_3_7.txt, subtask_3_8.txt |
Case Name |
Status |
Exec Time |
Memory |
sample_1.txt |
AC |
1 ms |
256 KB |
sample_2.txt |
AC |
1 ms |
256 KB |
subtask_1_1.txt |
AC |
3 ms |
2688 KB |
subtask_1_10.txt |
AC |
637 ms |
131692 KB |
subtask_1_11.txt |
AC |
1 ms |
256 KB |
subtask_1_2.txt |
AC |
488 ms |
126836 KB |
subtask_1_3.txt |
AC |
838 ms |
136040 KB |
subtask_1_4.txt |
AC |
404 ms |
126080 KB |
subtask_1_5.txt |
AC |
452 ms |
126016 KB |
subtask_1_6.txt |
AC |
551 ms |
128240 KB |
subtask_1_7.txt |
AC |
835 ms |
136680 KB |
subtask_1_8.txt |
AC |
396 ms |
126080 KB |
subtask_1_9.txt |
AC |
467 ms |
126204 KB |
subtask_2_1.txt |
AC |
842 ms |
137320 KB |
subtask_2_2.txt |
AC |
835 ms |
135912 KB |
subtask_2_3.txt |
AC |
838 ms |
137064 KB |
subtask_2_4.txt |
AC |
837 ms |
137448 KB |
subtask_2_5.txt |
AC |
401 ms |
126080 KB |
subtask_2_6.txt |
AC |
481 ms |
126456 KB |
subtask_2_7.txt |
AC |
555 ms |
128368 KB |
subtask_2_8.txt |
AC |
837 ms |
136552 KB |
subtask_3_1.txt |
AC |
1084 ms |
137448 KB |
subtask_3_2.txt |
AC |
1046 ms |
136808 KB |
subtask_3_3.txt |
AC |
616 ms |
127360 KB |
subtask_3_4.txt |
AC |
681 ms |
127484 KB |
subtask_3_5.txt |
AC |
849 ms |
132460 KB |
subtask_3_6.txt |
AC |
951 ms |
135784 KB |
subtask_3_7.txt |
AC |
1043 ms |
137064 KB |
subtask_3_8.txt |
AC |
1059 ms |
138088 KB |