#include <bits/stdc++.h>
using namespace std;
const int MAXM = 5000;
const long long INF = 0x3f3f3f3f3f3f3f3fLL;
int N, M;
int T[MAXM+2], L[MAXM+2], R[MAXM+2], C[MAXM+2];
int XL[MAXM+2], YL[MAXM+2], XR[MAXM+2], YR[MAXM+2];
long long cost[MAXM+2][MAXM+2];
long long dist[MAXM+2];
bool vis[MAXM+2];
long long dijk(int N, int s, int e)
{
memset(dist, 0x3f, sizeof dist);
memset(vis, 0, sizeof vis);
dist[s] = 0;
for(int _=0; _<N; _++)
{
int mini = -1; long long minv = INF;
for(int i=0; i<N; ++i)
if(!vis[i] && minv>dist[i])
mini = i, minv = dist[i];
if(mini == -1) return -1;
if(mini == e) return minv;
vis[mini] = true;
for(int i=0; i<N; ++i)
dist[i] = min(dist[i], dist[mini]+cost[mini][i]);
}
return -1;
}
int main()
{
scanf("%d%d", &N, &M);
for(int i=1; i<=M; ++i)
{
scanf("%d%d%d%d", T+i, L+i, R+i, C+i);
--L[i]; //L[i] = 0, R[i] = N covers whole
XL[i] = L[i]-T[i], YL[i] = L[i]+T[i];
XR[i] = R[i]-T[i], YR[i] = R[i]+T[i];
}
memset(cost, 0x3f, sizeof cost);
for(int i=1; i<=M; ++i)
{
if(L[i] == 0) cost[0][i] = C[i];
if(R[i] == N) cost[i][M+1] = 0;
}
for(int i=1; i<=M; ++i)
{
for(int j=1; j<=M; ++j)
{
if(i==j) continue;
if(XL[j] <= XR[i] && YL[j] <= YR[i])
cost[i][j] = C[j];
}
}
long long ans = dijk(M+2, 0, M+1);
printf("%lld\n", ans);
}
Compilation message
treatment.cpp: In function 'int main()':
treatment.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &N, &M);
~~~~~^~~~~~~~~~~~~~~~
treatment.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d%d", T+i, L+i, R+i, C+i);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
105 ms |
196600 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
100 ms |
196216 KB |
Output is correct |
2 |
Correct |
97 ms |
196216 KB |
Output is correct |
3 |
Correct |
98 ms |
196216 KB |
Output is correct |
4 |
Correct |
97 ms |
196216 KB |
Output is correct |
5 |
Correct |
103 ms |
196216 KB |
Output is correct |
6 |
Correct |
97 ms |
196216 KB |
Output is correct |
7 |
Correct |
97 ms |
196216 KB |
Output is correct |
8 |
Correct |
96 ms |
196216 KB |
Output is correct |
9 |
Correct |
100 ms |
196216 KB |
Output is correct |
10 |
Correct |
99 ms |
196192 KB |
Output is correct |
11 |
Correct |
100 ms |
196216 KB |
Output is correct |
12 |
Correct |
97 ms |
196216 KB |
Output is correct |
13 |
Correct |
97 ms |
196216 KB |
Output is correct |
14 |
Correct |
104 ms |
196216 KB |
Output is correct |
15 |
Correct |
99 ms |
196216 KB |
Output is correct |
16 |
Correct |
97 ms |
196216 KB |
Output is correct |
17 |
Correct |
97 ms |
196216 KB |
Output is correct |
18 |
Correct |
98 ms |
196216 KB |
Output is correct |
19 |
Correct |
101 ms |
196472 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
100 ms |
196216 KB |
Output is correct |
2 |
Correct |
97 ms |
196216 KB |
Output is correct |
3 |
Correct |
98 ms |
196216 KB |
Output is correct |
4 |
Correct |
97 ms |
196216 KB |
Output is correct |
5 |
Correct |
103 ms |
196216 KB |
Output is correct |
6 |
Correct |
97 ms |
196216 KB |
Output is correct |
7 |
Correct |
97 ms |
196216 KB |
Output is correct |
8 |
Correct |
96 ms |
196216 KB |
Output is correct |
9 |
Correct |
100 ms |
196216 KB |
Output is correct |
10 |
Correct |
99 ms |
196192 KB |
Output is correct |
11 |
Correct |
100 ms |
196216 KB |
Output is correct |
12 |
Correct |
97 ms |
196216 KB |
Output is correct |
13 |
Correct |
97 ms |
196216 KB |
Output is correct |
14 |
Correct |
104 ms |
196216 KB |
Output is correct |
15 |
Correct |
99 ms |
196216 KB |
Output is correct |
16 |
Correct |
97 ms |
196216 KB |
Output is correct |
17 |
Correct |
97 ms |
196216 KB |
Output is correct |
18 |
Correct |
98 ms |
196216 KB |
Output is correct |
19 |
Correct |
101 ms |
196472 KB |
Output is correct |
20 |
Correct |
282 ms |
196344 KB |
Output is correct |
21 |
Correct |
282 ms |
196300 KB |
Output is correct |
22 |
Correct |
315 ms |
196344 KB |
Output is correct |
23 |
Correct |
268 ms |
196344 KB |
Output is correct |
24 |
Correct |
173 ms |
196344 KB |
Output is correct |
25 |
Correct |
206 ms |
196344 KB |
Output is correct |
26 |
Correct |
194 ms |
196344 KB |
Output is correct |
27 |
Correct |
188 ms |
196344 KB |
Output is correct |
28 |
Correct |
181 ms |
196344 KB |
Output is correct |
29 |
Correct |
191 ms |
196344 KB |
Output is correct |
30 |
Correct |
134 ms |
196344 KB |
Output is correct |
31 |
Correct |
133 ms |
196472 KB |
Output is correct |
32 |
Correct |
228 ms |
196344 KB |
Output is correct |
33 |
Correct |
159 ms |
196344 KB |
Output is correct |
34 |
Correct |
301 ms |
196472 KB |
Output is correct |
35 |
Correct |
230 ms |
196344 KB |
Output is correct |
36 |
Correct |
165 ms |
196344 KB |
Output is correct |
37 |
Correct |
299 ms |
196472 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
105 ms |
196600 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |