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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#92382 | #602. 最小费用最大流(随机数据) | Minion# | 100 ✓ | 823ms | 3732kb | C++23 | 1.9kb | 2023-03-30 16:18:00 | 2023-03-30 16:18:01 |
Judging History
answer
#include<cstdio>
#include<algorithm>
#include<queue>
#define fo(i,x,y) for(int i = x;i <= y;++i)
#define fd(i,x,y) for(int i = x;i >= y;--i)
#define _is 1048576
#define gc() ib[++bi]
#define inf 100000000000ll
#define ll long long
#define P pair<ll,int>
using namespace std;
char ib[_is];int bi = -1;
int rd()
{
int x = 0;char ch = gc();
while(ch < 48 || ch > 57) ch = gc();
while(ch >= 48 && ch <= 57) x = x * 10 + ch - 48,ch = gc();
return x;
}
int n,m,x,y,z,t,e[30010][5],lst[410],tot,L[410],ans;
ll d[410],h[410];
bool vs[410];
void add(int x,int y,int z,int t)
{
e[++tot][0] = y,e[tot][1] = z,e[tot][3] = t,e[tot][4] = lst[x],lst[x] = tot;
e[++tot][0] = x,e[tot][1] = 0,e[tot][3] = -t,e[tot][4] = lst[y],lst[y] = tot;
}
bool dij()
{
fo(i,1,n) vs[i] = 0,d[i] = inf;
priority_queue<P,vector<P>,greater<P>> Q;
d[1] = 0,Q.push(P(0,1));
while(Q.size())
{
int w = Q.top().second;Q.pop();
if(vs[w]) continue;
vs[w] = 1;
for(int i = lst[w];i;i = e[i][4])
{
int v = e[i][0];
if(e[i][1] > e[i][2] && d[v] > d[w] + e[i][3] + h[w] - h[v]) d[v] = d[w] + e[i][3] + h[w] - h[v],Q.push(P(d[v],v));
}
}
fo(i,1,n) vs[i] = 0;
return d[n] != inf;
}
ll dfs(int x,ll fl)
{
if(x == n) return fl;
vs[x] = 1;
ll F = 0;
for(int &i = L[x];i;i = e[i][4])
{
int v = e[i][0];
if(e[i][1] <= e[i][2] || vs[v] || d[v] != d[x] + e[i][3] + h[x] - h[v]) continue;
ll nw = dfs(v,min(fl,(ll)(e[i][1] - e[i][2])));
if(nw <= 0) continue;
e[i][2] += nw,e[i ^ 1][2] -= nw,fl -= nw,F += nw,ans += nw * e[i][3];
if(fl == 0) break;
}
vs[x] = 0;
return F;
}
int main()
{
fread(ib,1,_is,stdin);
n = rd(),m = rd(),tot = 1;
fo(i,1,m) x = rd(),y = rd(),z = rd(),t = rd(),add(x,y,z,t);
ll re = 0;
while(dij())
{
fo(i,1,n) L[i] = lst[i];
re += dfs(1,inf);
fo(i,1,n) h[i] += d[i];
}
printf("%lld %lld\n",re,ans);
}
Details
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Test #1:
score: 10
Accepted
time: 2ms
memory: 2940kb
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: 2ms
memory: 3052kb
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: 2ms
memory: 2992kb
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: 24ms
memory: 3292kb
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: 103ms
memory: 3176kb
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: 90ms
memory: 3244kb
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: 91ms
memory: 3280kb
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: 734ms
memory: 3596kb
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: 816ms
memory: 3732kb
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: 823ms
memory: 3652kb
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"