QOJ.ac
QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #631300 | #8760. 不等式 | Jingulu | WA | 4ms | 12972kb | C++17 | 1.1kb | 2024-10-12 00:06:18 | 2024-10-12 00:06:20 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N=200010,mod=1e9;
vector<pair<int,int> > h[N];
int dian[N];
int idx;
int q[N];
int f[N];
int n,m;
void tp(){
for(int i=1;i<=n;i++){
if(dian[i]==0){
//cout<<i<<" ";
q[++idx]=i;
f[i]=1;
}
}
//cout<<idx;
for(int i=1;i<=idx;i++){
int u=q[i];
int w=f[u];
for(int j=0;j<h[u].size();j++){
int fu=h[u][j].first,c=h[u][j].second;
//cout<<fu<<" "<<c<<endl;
if(f[c]!=0){
f[fu]=min(mod,max(f[fu],w+f[c]));
dian[fu]--;
if(dian[fu]==0) q[++idx]=fu;
}
}
}
}
signed main(){
cin>>n>>m;
while(m--){
int a,b,c;
cin>>a>>b>>c;
h[b].push_back({a,c});
h[c].push_back({a,b});
dian[a]++;
}
tp();
// cout<<idx<<" ";
if(idx<n){
cout<<-1;
return 0;
}
int ans=0;
for(int i=1;i<=n;i++) ans+=f[i];
if(ans>1e9) cout<<-1;
else cout<<ans;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 11232kb
input:
3 1 1 2 2
output:
4
result:
ok 1 number(s): "4"
Test #2:
score: 0
Accepted
time: 3ms
memory: 12264kb
input:
3 1 1 2 3
output:
4
result:
ok 1 number(s): "4"
Test #3:
score: 0
Accepted
time: 3ms
memory: 11716kb
input:
3 1 1 2 2
output:
4
result:
ok 1 number(s): "4"
Test #4:
score: 0
Accepted
time: 0ms
memory: 11208kb
input:
3 1 1 2 2
output:
4
result:
ok 1 number(s): "4"
Test #5:
score: 0
Accepted
time: 0ms
memory: 12600kb
input:
3 1 1 2 2
output:
4
result:
ok 1 number(s): "4"
Test #6:
score: 0
Accepted
time: 0ms
memory: 11436kb
input:
5 1 1 2 2
output:
6
result:
ok 1 number(s): "6"
Test #7:
score: 0
Accepted
time: 3ms
memory: 12640kb
input:
5 1 1 2 2
output:
6
result:
ok 1 number(s): "6"
Test #8:
score: 0
Accepted
time: 3ms
memory: 11528kb
input:
5 1 1 2 2
output:
6
result:
ok 1 number(s): "6"
Test #9:
score: 0
Accepted
time: 0ms
memory: 12312kb
input:
5 1 1 2 3
output:
6
result:
ok 1 number(s): "6"
Test #10:
score: 0
Accepted
time: 0ms
memory: 12276kb
input:
5 2 1 2 3 2 3 4
output:
8
result:
ok 1 number(s): "8"
Test #11:
score: 0
Accepted
time: 0ms
memory: 11476kb
input:
10 1 1 2 3
output:
11
result:
ok 1 number(s): "11"
Test #12:
score: 0
Accepted
time: 0ms
memory: 12248kb
input:
10 1 1 2 2
output:
11
result:
ok 1 number(s): "11"
Test #13:
score: 0
Accepted
time: 4ms
memory: 12972kb
input:
10 2 1 2 3 2 3 4
output:
13
result:
ok 1 number(s): "13"
Test #14:
score: 0
Accepted
time: 0ms
memory: 12340kb
input:
10 2 1 2 2 2 3 4
output:
14
result:
ok 1 number(s): "14"
Test #15:
score: 0
Accepted
time: 3ms
memory: 11524kb
input:
10 3 1 2 3 1 8 8 2 3 3
output:
13
result:
ok 1 number(s): "13"
Test #16:
score: 0
Accepted
time: 0ms
memory: 11928kb
input:
20 1 1 2 2
output:
21
result:
ok 1 number(s): "21"
Test #17:
score: 0
Accepted
time: 0ms
memory: 11252kb
input:
20 2 1 2 3 2 3 3
output:
23
result:
ok 1 number(s): "23"
Test #18:
score: 0
Accepted
time: 3ms
memory: 12428kb
input:
20 3 7 14 6 1 2 3 4 7 20
output:
24
result:
ok 1 number(s): "24"
Test #19:
score: 0
Accepted
time: 0ms
memory: 11164kb
input:
20 4 1 2 2 6 10 6 2 3 3 3 4 5
output:
-1
result:
ok 1 number(s): "-1"
Test #20:
score: 0
Accepted
time: 0ms
memory: 12756kb
input:
20 5 1 17 3 1 2 3 2 3 4 3 4 5 8 13 16
output:
28
result:
ok 1 number(s): "28"
Test #21:
score: 0
Accepted
time: 3ms
memory: 11732kb
input:
200 9 1 2 2 2 3 3 3 4 5 91 112 195 126 145 82 4 5 5 53 2 15 5 6 6 6 7 7
output:
318
result:
ok 1 number(s): "318"
Test #22:
score: 0
Accepted
time: 3ms
memory: 11368kb
input:
200 17 1 2 2 100 69 47 159 84 111 2 3 3 3 4 5 4 5 5 8 9 76 5 6 7 158 81 154 189 62 45 192 159 181 6 7 7 15 181 91 7 193 152 140 65 66 7 8 9 32 157 67
output:
428
result:
ok 1 number(s): "428"
Test #23:
score: 0
Accepted
time: 3ms
memory: 11660kb
input:
200 25 118 152 40 172 193 173 126 32 89 1 2 3 147 148 112 2 3 4 3 4 4 35 116 95 179 193 64 70 22 55 4 5 5 5 6 6 24 74 182 184 168 129 6 7 8 7 8 9 109 63 173 8 9 10 38 125 106 68 147 40 33 65 46 144 12 168 9 10 11 10 11 11 190 73 48
output:
835
result:
ok 1 number(s): "835"
Test #24:
score: -100
Wrong Answer
time: 3ms
memory: 12100kb
input:
200 33 1 2 3 165 80 199 2 3 4 10 80 12 3 4 5 4 5 6 5 6 7 128 1 190 6 7 7 166 124 95 7 8 9 60 51 80 25 158 81 108 107 99 8 9 9 9 10 10 10 11 12 54 41 100 11 12 13 176 185 149 12 13 13 13 14 14 14 15 16 15 16 17 16 17 17 128 73 196 17 18 19 93 169 141 18 19 19 19 20 20 20 21 21 21 22 22 12 55 32
output:
3515
result:
wrong answer 1st numbers differ - expected: '543121', found: '3515'