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-rw-r--r--17/day3/timeline.cpp41
1 files changed, 41 insertions, 0 deletions
diff --git a/17/day3/timeline.cpp b/17/day3/timeline.cpp
new file mode 100644
index 0000000..a6b8e30
--- /dev/null
+++ b/17/day3/timeline.cpp
@@ -0,0 +1,41 @@
+#include <bits/stdc++.h>
+#define f first
+#define s second
+using namespace std;
+using ii = pair<int, int>;
+
+int dist[5005];
+vector<ii> G[5005];
+
+int main() {
+ ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
+ int N, M, C; cin >> N >> M >> C;
+ for (int u = 1; u <= N; ++u) {
+ int s, t; cin >> s >> t;
+ G[u].emplace_back(-s, 0);
+ G[0].emplace_back(t, u);
+ }
+ while (C--) {
+ int a, b, x; cin >> a >> b >> x;
+ G[a].emplace_back(-x, b);
+ }
+ memset(dist, '?', sizeof dist);
+ dist[0] = 0;
+ for (int i = 0; i < N; ++i) {
+ for (int u = 0; u <= N; ++u) {
+ for (auto& v : G[u]) {
+ if (dist[u] + v.f < dist[v.s]) dist[v.s] = dist[u] + v.f;
+ }
+ }
+ }
+ for (int u = 0; u <= N; ++u) {
+ for (auto& v : G[u]) {
+ if (dist[u] < 0 || dist[u] > M || dist[u] + v.f < dist[v.s]) {
+ cout << "impossible\n";
+ return 0;
+ }
+ }
+ }
+ for (int u = 1; u <= N; ++u) cout << dist[u] << '\n';
+ return 0;
+} \ No newline at end of file