#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
const int INF = 1e9; int n; int m;
//vector<vector<int>> gr; vector<bool> used;
struct Edge {
int from; int to; int w;
Edge(int from, int to, int w) : from(from), to(to), w(w) {}
};
int main() {
cin >> n >> m;
// we will have n+1 vertices
vector<Edge> edges;
for (int i = 0; i < m; i++) {
int l; int r; int k; int v; cin >> l >> r >> k >> v; r++; l++;
if (v == 0) {
edges.push_back(Edge(l - 1, r, r + 1 - l - k));
}
else {
edges.push_back(Edge(r, l - 1, l + k - r - 2));
}
}
for (int i = 1; i <= n; i++){
edges.push_back(Edge(i-1, i, 1)); //edges.push_back(Edge(0, i, -1));
}
//edges.push_back(Edge(0, 1, 0));
vector<int> d(n + 1, INF); d[0] = 0;
for (int i = 0; i < n; i++) {
for (auto& e : edges) {
if (d[e.to] > d[e.from] + e.w) {
d[e.to] = d[e.from] + e.w;
}
}
}
vector<int> old = d;
for (int i = 0; i < n; i++) {
for (auto& e : edges) {
if (d[e.to] > d[e.from] + e.w) {
d[e.to] = d[e.from] + e.w;
}
}
}
for (int i = 0; i < n + 1; i++) {
if (d[i] != old[i]) {
cout << "-1" << "\n"; return 0;
}
}
// ok so no negative cycles
for (int i = 1; i <= n; i++) {
cout << d[i] - d[i-1] << " ";
}
cout << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
132 ms |
836 KB |
Output is correct |
2 |
Correct |
136 ms |
860 KB |
Output is correct |
3 |
Correct |
143 ms |
1040 KB |
Output is correct |
4 |
Correct |
136 ms |
856 KB |
Output is correct |
5 |
Correct |
157 ms |
856 KB |
Output is correct |
6 |
Correct |
158 ms |
796 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
132 ms |
836 KB |
Output is correct |
2 |
Correct |
136 ms |
860 KB |
Output is correct |
3 |
Correct |
143 ms |
1040 KB |
Output is correct |
4 |
Correct |
136 ms |
856 KB |
Output is correct |
5 |
Correct |
157 ms |
856 KB |
Output is correct |
6 |
Correct |
158 ms |
796 KB |
Output is correct |
7 |
Correct |
139 ms |
856 KB |
Output is correct |
8 |
Correct |
151 ms |
856 KB |
Output is correct |
9 |
Incorrect |
160 ms |
860 KB |
Integer -15 violates the range [-1, 1] |
10 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |