#include <bits/stdc++.h>
using namespace std;
#define scd(t) scanf("%d", &t)
#define scld(t) scanf("%ld", &t)
#define sclld(t) scanf("%lld", &t)
#define scc(t) scanf("%c", &t)
#define scs(t) scanf("%s", t)
#define scf(t) scanf("%f", &t)
#define sclf(t) scanf("%lf", &t)
#define forr(i, j, k) for (int i = j; i < k; i++)
#define frange(i, j) forr(i, 0, j)
#define all(cont) cont.begin(), cont.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second
typedef long int li;
typedef unsigned long int uli;
typedef long long int lli;
typedef unsigned long long int ulli;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<lli> vll;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef map<int, int> mpii;
typedef set<int> seti;
typedef multiset<int> mseti;
typedef long double ld;
void usaco()
{
freopen("input.in", "r", stdin);
// freopen("problem.out", "w", stdout);
}
int k, n, m, o;
vvi graph;
vector<vvi> lift;
vi binlift(int x, int c) {
vi out(k, 1e9);
out[x%k] = 0;
frange(i, 20) {
if(c & (1<<i)) {
vi nex(k, 1e9);
frange(l, k) {
frange(r, k) {
if(i == 0) {
nex[l] = min(nex[l], out[r] + lift[i][(x/k) * k + r][l]);
}
else {
if((x/k + (1<<(i-1)))*k+r<= n)
nex[l] = min(nex[l], out[r] + lift[i][(x/k)*k+r][l]);
}
}
}
x = (x/k + (i<<i)) * k;
out = nex;
}
}
return out;
}
int main() {
usaco();
scd(k);
scd(n);
scd(m);
scd(o);
graph = vvi(n+1, vi(k, 1e9));
frange(i, m) {
int a, b;
scd(a);
scd(b);
int t;
scd(t);
graph[a][b%k] = t;
}
lift = vector<vvi>(20, vvi(n+1, vi(k, 1e9)));
forr(i, 0, n+1) {
lift[0][i] = graph[i];
}
forr(i, 1, 20) {
forr(j, 0, n+1) {
frange(l, k) {
frange(r, k) {
if((j/k + (1<<(i-1)))*k + r<= n)
lift[i][j][l] = min(lift[i][j][l], lift[i-1][j][r] + lift[i-1][(j/k + (1<<(i-1)))*k + r][l]);
}
}
}
}
frange(i, o) {
int a, b;
scd(a);
scd(b);
vi out = binlift(a, b/k - a/k);
int mi = out[b%k];
if(mi < 1e9) printf("%d\n", mi);
else printf("-1\n");
}
}
Compilation message
toll.cpp: In function 'void usaco()':
toll.cpp:37:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
37 | freopen("input.in", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp: In function 'int main()':
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:73:5: note: in expansion of macro 'scd'
73 | scd(k);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:74:5: note: in expansion of macro 'scd'
74 | scd(n);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:75:5: note: in expansion of macro 'scd'
75 | scd(m);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:76:5: note: in expansion of macro 'scd'
76 | scd(o);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:81:9: note: in expansion of macro 'scd'
81 | scd(a);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:82:9: note: in expansion of macro 'scd'
82 | scd(b);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:84:9: note: in expansion of macro 'scd'
84 | scd(t);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:107:9: note: in expansion of macro 'scd'
107 | scd(a);
| ^~~
toll.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
5 | #define scd(t) scanf("%d", &t)
| ~~~~~^~~~~~~~~~
toll.cpp:108:9: note: in expansion of macro 'scd'
108 | scd(b);
| ^~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
