#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n,m;
int INF = 1e9;
void relaxedges(){
int a[20001], b[20001], c[20001];
for (int i = 0; i<m; i++){
int l,r,k,v;
cin>>l>>r>>k>>v;
r++;
if (v==0){
a[i]=l;
b[i]=r;
c[i]=k-(r-l);
} else {
a[i]=r;
b[i]=l;
c[i]=(r-l)-k+1;
}
}
for (int i = 0; i<n; i++){
a[m+2*i]=i;
b[m+2*i]=i+1;
c[m+2*i]=-1;
a[m+2*i+1]=i+1;
b[m+2*i+1]=i;
c[m+2*i+1]=0;
}
m+=2*n;
bool changed = true;
bool works = true;
int vals[20001];
vals[0]=0;
for (int i = 1; i<=n; i++){
vals[i]=INF;
}
for (int i = 0; i<=n; i++){
bool changed = false;
for (int i = 0; i<m; i++){
if (vals[b[i]]>vals[a[i]]-c[i]){
vals[b[i]]=vals[a[i]]-c[i];
changed=true;
}
}
if (changed&&i==n){
works=false;
}
//if (!changed){break;}
}
if (!works){
cout<<-1<<'\n';
return;
}
/*for (int i = 0; i<=n; i++){
cout<<vals[i]<<' ';
}cout<<'\n';*/
for (int i = 0; i<n; i++){
cout<<vals[i+1]-vals[i]<<' ';
}cout<<'\n';
}
int main(){
cin.tie(0);
ios_base::sync_with_stdio(0);
cin>>n>>m;
/*if (n<=18){
subtask1();
} else {*/
relaxedges();
//}
}
Compilation message
restore.cpp: In function 'void relaxedges()':
restore.cpp:33:10: warning: unused variable 'changed' [-Wunused-variable]
33 | bool changed = true;
| ^~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
416 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
164 ms |
760 KB |
Output is correct |
2 |
Correct |
162 ms |
768 KB |
Output is correct |
3 |
Correct |
217 ms |
768 KB |
Output is correct |
4 |
Correct |
183 ms |
768 KB |
Output is correct |
5 |
Correct |
374 ms |
888 KB |
Output is correct |
6 |
Correct |
365 ms |
772 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
164 ms |
760 KB |
Output is correct |
2 |
Correct |
162 ms |
768 KB |
Output is correct |
3 |
Correct |
217 ms |
768 KB |
Output is correct |
4 |
Correct |
183 ms |
768 KB |
Output is correct |
5 |
Correct |
374 ms |
888 KB |
Output is correct |
6 |
Correct |
365 ms |
772 KB |
Output is correct |
7 |
Correct |
185 ms |
768 KB |
Output is correct |
8 |
Correct |
210 ms |
768 KB |
Output is correct |
9 |
Correct |
178 ms |
792 KB |
Output is correct |
10 |
Correct |
167 ms |
768 KB |
Output is correct |
11 |
Correct |
383 ms |
768 KB |
Output is correct |
12 |
Correct |
394 ms |
788 KB |
Output is correct |
13 |
Correct |
164 ms |
776 KB |
Output is correct |
14 |
Correct |
172 ms |
768 KB |
Output is correct |
15 |
Correct |
196 ms |
788 KB |
Output is correct |
16 |
Correct |
183 ms |
792 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
416 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
11 |
Correct |
164 ms |
760 KB |
Output is correct |
12 |
Correct |
162 ms |
768 KB |
Output is correct |
13 |
Correct |
217 ms |
768 KB |
Output is correct |
14 |
Correct |
183 ms |
768 KB |
Output is correct |
15 |
Correct |
374 ms |
888 KB |
Output is correct |
16 |
Correct |
365 ms |
772 KB |
Output is correct |
17 |
Correct |
185 ms |
768 KB |
Output is correct |
18 |
Correct |
210 ms |
768 KB |
Output is correct |
19 |
Correct |
178 ms |
792 KB |
Output is correct |
20 |
Correct |
167 ms |
768 KB |
Output is correct |
21 |
Correct |
383 ms |
768 KB |
Output is correct |
22 |
Correct |
394 ms |
788 KB |
Output is correct |
23 |
Correct |
164 ms |
776 KB |
Output is correct |
24 |
Correct |
172 ms |
768 KB |
Output is correct |
25 |
Correct |
196 ms |
788 KB |
Output is correct |
26 |
Correct |
183 ms |
792 KB |
Output is correct |
27 |
Correct |
180 ms |
768 KB |
Output is correct |
28 |
Correct |
178 ms |
768 KB |
Output is correct |
29 |
Correct |
165 ms |
892 KB |
Output is correct |
30 |
Correct |
180 ms |
768 KB |
Output is correct |
31 |
Correct |
159 ms |
776 KB |
Output is correct |
32 |
Correct |
161 ms |
892 KB |
Output is correct |
33 |
Correct |
363 ms |
888 KB |
Output is correct |
34 |
Correct |
361 ms |
892 KB |
Output is correct |
35 |
Correct |
162 ms |
768 KB |
Output is correct |
36 |
Correct |
166 ms |
888 KB |
Output is correct |