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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#478795#602. 最小费用最大流(随机数据)PYD1#100 ✓994ms4536kbC++142.2kb2024-07-15 11:10:392024-07-15 11:10:40

Judging History

This is the latest submission verdict.

  • [2024-07-15 11:10:40]
  • Judged
  • Verdict: 100
  • Time: 994ms
  • Memory: 4536kb
  • [2024-07-15 11:10:39]
  • Submitted

answer

#include <set>
#include <map>
#include <list>
#include <queue>
#include <cmath>
#include <time.h>
#include <random>
#include <bitset>
#include <vector>
#include <cstdio>
#include <stdio.h>
#include <iomanip>
#include <assert.h>
#include <stdlib.h>
#include <memory.h>
#include <string.h>
#include <iostream>
#include <algorithm>
#include <unordered_set>
#include <unordered_map>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;

#define mk make_pair
#define fi first
#define se second

char buf[1 << 20],*p1,*p2;
inline char gc(){
	if (p1 == p2){
		p1 = buf;
		p2 = buf + fread(buf,1,1 << 20,stdin);
	}
	return p1 == p2 ? EOF : *p1++;
	// return getchar();
}

inline int read(){
	int t = 0,f = 1;
	register char c = gc();
	while (c < 48 || c > 57) f = (c == '-') ? (-1) : (f),c = gc();
	while (c >= 48 && c <= 57) t = (t << 1) + (t << 3) + (c ^ 48),c = gc();
	return f * t;
}

const int N = 400 + 3,M = 2e5 + 3,INF = 0x3f3f3f3f;
int n,m;

struct Edge {int u,v,w,c,nxt;};

namespace f{
	int n,m,etot = 1,head[N],dis[N],fr[N];
	bool inq[N];
	int ans,cost;
	Edge e[M << 1];
	queue <int> q;
	inline void adde(int u,int v,int w,int c){
		e[++etot] = (Edge){u,v,w,c,head[u]},head[u] = etot;
		e[++etot] = (Edge){v,u,0,-c,head[v]},head[v] = etot;
	}
	void mcmf(int s,int t){
		while (1){
			memset(dis,63,sizeof(dis));
			dis[s] = 0,inq[s] = 1,q.push(s);
			while (!q.empty()){
				int u = q.front();q.pop(),inq[u] = 0;
				for (int i = head[u];i;i = e[i].nxt){
					int v = e[i].v;
					if (e[i].w > 0 && dis[u] + e[i].c < dis[v]){
						dis[v] = dis[u] + e[i].c,fr[v] = i;
						if (!inq[v]) q.push(v),inq[v] = 1;
					}
				}
			}
			if (dis[t] >= INF) return ;
			int w = INF;
			for (int i = fr[t];i;i = fr[e[i].u]) w = min(w,e[i].w);
			ans += w;
			for (int i = fr[t];i;i = fr[e[i].u]) e[i].w -= w,e[i ^ 1].w += w,cost += w * e[i].c;
		}
	}
}

int main(){
#ifndef ONLINE_JUDGE
	freopen("in.in","r",stdin);
	// freopen("out.out","w",stdout);
#endif
	n = read(),m = read();
	for (int i = 1;i <= m;i++){
		int u = read(),v = read(),w = read(),c = read();
		f::adde(u,v,w,c);
	}
	f::mcmf(1,n);
	printf("%d %d\n",f::ans,f::cost);
	return 0;
}

Details

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Test #1:

score: 10
Accepted
time: 0ms
memory: 3696kb

input:

8 27
2 3 2147483647 100
1 3 1 100
2 4 2147483647 10
1 4 1 10
2 4 2147483647 10
1 4 1 10
2 8 3 0
3 5 2147483647 100
1 5 1 100
3 8 1 0
3 2 2147483647 0
4 5 2147483647 10
1 5 1 10
4 8 1 0
4 2 2147483647 0
5 6 2147483647 1
1 6 1 1
5 6 2147483647 1
1 6 1 1
5 7 2147483647 1
1 7 1 1
5 8 3 0
5 2 2147483647 ...

output:

8 243

result:

ok 2 number(s): "8 243"

Test #2:

score: 10
Accepted
time: 0ms
memory: 3796kb

input:

12 49
2 10 2147483647 5
1 10 1 5
2 5 2147483647 50
1 5 1 50
2 9 2147483647 8
1 9 1 8
2 8 2147483647 47
1 8 1 47
2 11 2147483647 17
1 11 1 17
2 12 5 0
3 12 0 0
3 2 2147483647 0
4 6 2147483647 18
1 6 1 18
4 11 2147483647 12
1 11 1 12
4 9 2147483647 14
1 9 1 14
4 12 3 0
4 2 2147483647 0
5 11 2147483647...

output:

15 436

result:

ok 2 number(s): "15 436"

Test #3:

score: 10
Accepted
time: 0ms
memory: 3712kb

input:

27 169
2 15 2147483647 24
1 15 1 24
2 19 2147483647 96
1 19 1 96
2 12 2147483647 49
1 12 1 49
2 13 2147483647 75
1 13 1 75
2 24 2147483647 2
1 24 1 2
2 27 5 0
3 27 0 0
3 2 2147483647 0
4 11 2147483647 99
1 11 1 99
4 3 2147483647 85
1 3 1 85
4 27 2 0
4 2 2147483647 0
5 27 0 0
5 2 2147483647 0
6 9 214...

output:

60 4338

result:

ok 2 number(s): "60 4338"

Test #4:

score: 10
Accepted
time: 20ms
memory: 4112kb

input:

77 2149
2 42 2147483647 33
1 42 1 33
2 68 2147483647 30
1 68 1 30
2 76 2147483647 13
1 76 1 13
2 51 2147483647 93
1 51 1 93
2 12 2147483647 39
1 12 1 39
2 57 2147483647 74
1 57 1 74
2 70 2147483647 21
1 70 1 21
2 73 2147483647 24
1 73 1 24
2 52 2147483647 54
1 52 1 54
2 15 2147483647 99
1 15 1 99
2 ...

output:

1000 74606

result:

ok 2 number(s): "1000 74606"

Test #5:

score: 10
Accepted
time: 107ms
memory: 4292kb

input:

102 4199
2 48 2147483647 42
1 48 1 42
2 85 2147483647 50
1 85 1 50
2 22 2147483647 83
1 22 1 83
2 95 2147483647 97
1 95 1 97
2 82 2147483647 34
1 82 1 34
2 25 2147483647 72
1 25 1 72
2 4 2147483647 17
1 4 1 17
2 47 2147483647 10
1 47 1 10
2 71 2147483647 12
1 71 1 12
2 68 2147483647 39
1 68 1 39
2 2...

output:

2000 161420

result:

ok 2 number(s): "2000 161420"

Test #6:

score: 10
Accepted
time: 112ms
memory: 4184kb

input:

102 4199
2 79 2147483647 13
1 79 1 13
2 83 2147483647 73
1 83 1 73
2 75 2147483647 90
1 75 1 90
2 30 2147483647 92
1 30 1 92
2 54 2147483647 25
1 54 1 25
2 66 2147483647 53
1 66 1 53
2 52 2147483647 37
1 52 1 37
2 63 2147483647 46
1 63 1 46
2 11 2147483647 20
1 11 1 20
2 55 2147483647 53
1 55 1 53
2...

output:

2000 143072

result:

ok 2 number(s): "2000 143072"

Test #7:

score: 10
Accepted
time: 106ms
memory: 3956kb

input:

102 4199
2 39 2147483647 45
1 39 1 45
2 51 2147483647 11
1 51 1 11
2 86 2147483647 63
1 86 1 63
2 23 2147483647 46
1 23 1 46
2 48 2147483647 63
1 48 1 63
2 87 2147483647 8
1 87 1 8
2 73 2147483647 63
1 73 1 63
2 5 2147483647 52
1 5 1 52
2 80 2147483647 21
1 80 1 21
2 31 2147483647 44
1 31 1 44
2 101...

output:

2000 146132

result:

ok 2 number(s): "2000 146132"

Test #8:

score: 10
Accepted
time: 890ms
memory: 4536kb

input:

302 10599
2 72 2147483647 169
1 72 1 169
2 260 2147483647 165
1 260 1 165
2 12 2147483647 108
1 12 1 108
2 16 2147483647 26
1 16 1 26
2 28 2147483647 148
1 28 1 148
2 7 2147483647 74
1 7 1 74
2 139 2147483647 199
1 139 1 199
2 231 2147483647 9
1 231 1 9
2 287 2147483647 123
1 287 1 123
2 135 2147483...

output:

5000 1106316

result:

ok 2 number(s): "5000 1106316"

Test #9:

score: 10
Accepted
time: 994ms
memory: 4292kb

input:

302 10599
2 222 2147483647 132
1 222 1 132
2 17 2147483647 7
1 17 1 7
2 177 2147483647 253
1 177 1 253
2 90 2147483647 195
1 90 1 195
2 128 2147483647 289
1 128 1 289
2 42 2147483647 193
1 42 1 193
2 213 2147483647 133
1 213 1 133
2 263 2147483647 293
1 263 1 293
2 50 2147483647 155
1 50 1 155
2 228...

output:

5000 1290871

result:

ok 2 number(s): "5000 1290871"

Test #10:

score: 10
Accepted
time: 924ms
memory: 4312kb

input:

302 10599
2 176 2147483647 289
1 176 1 289
2 190 2147483647 99
1 190 1 99
2 10 2147483647 96
1 10 1 96
2 240 2147483647 165
1 240 1 165
2 273 2147483647 205
1 273 1 205
2 248 2147483647 194
1 248 1 194
2 220 2147483647 122
1 220 1 122
2 194 2147483647 167
1 194 1 167
2 8 2147483647 67
1 8 1 67
2 227...

output:

5000 1395897

result:

ok 2 number(s): "5000 1395897"