QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#644015 | #2017. 排水系统 | remmymilkyway | 0 | 0ms | 0kb | C++14 | 2.1kb | 2024-10-16 09:52:16 | 2024-10-16 09:52:18 |
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn = 1e5 + 5;
void prt(__int128 x) {
string s;
while (x) {
s += (char)('0' + x % 10);
x /= 10;
}
if (s.empty()) {
printf("0");
}
for (int i = (int)s.size() - 1; i >= 0; i--) {
printf("%c", s[i]);
}
}
struct frac {
__int128 num, den;
void yuefen() {
__int128 g = __gcd(num, den);
num /= g;
den /= g;
}
friend frac operator+ (frac x, frac y) {
frac res;
__int128 g = __gcd(x.den, y.den);
res.den = x.den / g * y.den;
res.num = res.den / x.den * x.num + res.den / y.den * y.num;
res.yuefen();
return res;
}
friend frac operator/ (frac x, __int128 val) {
__int128 g = __gcd(x.num, val);
x.num /= g;
x.den *= val / g;
return x;
}
};
int n, m, deg[maxn];
vector<int> G[maxn];
frac w[maxn];
int main() {
freopen("water.in", "r", stdin);
freopen("water.out", "w", stdout);
scanf("%d %d", &n, &m);
for (int i = 1; i <= n; i++) {
w[i].den = 1;
}
queue<int> q;
for (int i = 1; i <= n; i++) {
int d;
scanf("%d", &d);
for (int j = 1; j <= d; j++) {
int a;
scanf("%d", &a);
G[i].push_back(a);
deg[a]++;
}
}
for (int i = 1; i <= m; i++) {
q.push(i);
w[i].num = 1;
}
while (!q.empty()) {
int cur = q.front();
q.pop();
cout << cur << ' ';
prt(w[cur].num);
cout << ' ';
prt(w[cur].den);
cout << '\n';
for (auto i : G[cur]) {
w[i] = w[i] + (w[cur] / (int)G[cur].size());
deg[i]--;
if (deg[i] == 0) {
q.push(i);
}
}
}
for (int i = 1; i <= n; i++) {
if (!(int)G[i].size()) {
prt(w[i].num);
printf(" ");
prt(w[i].den);
printf("\n");
}
}
return 0;
}
Details
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Pretests
Final Tests
Test #1:
score: 0
Dangerous Syscalls
input:
10 1 4 2 3 4 5 3 6 7 8 3 7 10 8 1 7 2 8 10 2 8 9 2 9 8 1 10 1 10 0
output:
result:
Test #2:
score: 0
Dangerous Syscalls
input:
10 1 5 2 3 4 5 7 3 6 7 9 3 7 8 9 3 8 9 6 1 7 2 9 10 2 10 9 0 0 0
output:
result:
Test #3:
score: 0
Dangerous Syscalls
input:
10 1 5 2 3 4 5 8 4 6 8 7 9 2 7 6 4 8 6 9 10 2 9 8 1 10 0 0 1 10 0
output:
result:
Test #4:
score: 0
Dangerous Syscalls
input:
1000 1 5 2 3 4 5 468 5 6 7 8 9 72 5 10 11 12 13 658 5 14 15 16 17 100 5 18 19 20 21 129 5 22 23 24 25 146 5 26 27 28 29 91 5 30 31 32 33 337 5 34 35 36 37 694 5 38 39 40 41 766 5 42 43 44 45 986 5 46 47 48 49 365 5 50 51 52 53 176 5 54 55 56 57 489 5 58 59 60 61 469 5 62 63 64 65 984 5 66 67 68 69 2...
output:
result:
Test #5:
score: 0
Dangerous Syscalls
input:
1000 1 5 2 3 4 5 257 5 6 7 8 9 948 5 10 11 12 13 633 5 14 15 16 17 1000 5 18 19 20 21 105 5 22 23 24 25 662 5 26 27 28 29 648 5 30 31 32 33 394 5 34 35 36 37 504 5 38 39 40 41 151 5 42 43 44 45 155 5 46 47 48 49 783 4 50 51 52 53 5 54 55 56 57 249 5 58 59 60 61 432 5 62 63 64 65 423 5 66 67 68 69 70...
output:
result:
Test #6:
score: 0
Dangerous Syscalls
input:
1000 1 5 2 3 4 5 799 5 6 7 8 9 587 5 10 11 12 13 694 5 14 15 16 17 865 5 18 19 20 21 10 5 22 23 24 25 69 5 26 27 28 29 337 5 30 31 32 33 607 5 34 35 36 37 989 5 38 39 40 41 291 5 42 43 44 45 309 5 46 47 48 49 44 5 50 51 52 53 854 5 54 55 56 57 209 5 58 59 60 61 502 5 62 63 64 65 597 5 66 67 68 69 60...
output:
result:
Test #7:
score: 0
Dangerous Syscalls
input:
100000 1 5 2 3 4 5 7783 5 6 7 8 9 21991 5 10 11 12 13 45651 5 14 15 16 17 56745 5 18 19 20 21 84002 5 22 23 24 25 94984 5 26 27 28 29 16303 5 30 31 32 33 30894 5 34 35 36 37 37939 5 38 39 40 41 61574 5 42 43 44 45 72828 5 46 47 48 49 92611 5 50 51 52 53 11795 5 54 55 56 57 22587 5 58 59 60 61 36800 ...
output:
result:
Test #8:
score: 0
Dangerous Syscalls
input:
100000 1 5 2 3 4 5 6025 5 6 7 8 9 32221 5 10 11 12 13 39240 5 14 15 16 17 55392 5 18 19 20 21 69386 5 22 23 24 25 97544 5 26 27 28 29 16414 5 30 31 32 33 32966 5 34 35 36 37 41376 5 38 39 40 41 66116 5 42 43 44 45 83340 5 46 47 48 49 90236 5 50 51 52 53 13716 5 54 55 56 57 32168 5 58 59 60 61 43106 ...
output:
result:
Test #9:
score: 0
Dangerous Syscalls
input:
100000 10 5 11 12 13 14 15 3 66 67 68 4 96 97 98 99 5 1274 1643 2223 2242 2626 5 5407 8119 10748 19818 29900 5 178 180 316 323 1080 5 274 596 716 1923 2001 5 1497 8384 9739 16776 18532 5 165 211 240 289 985 5 170 179 197 222 1011 5 16 17 18 19 20 5 164 322 540 590 1641 5 340 4731 14181 50729 55910 5...
output:
result:
Test #10:
score: 0
Dangerous Syscalls
input:
100000 10 5 11 12 13 14 15 3 66 67 68 4 98 99 100 101 5 193 213 239 613 1656 5 187 259 453 513 3129 5 148 606 2076 5693 30126 5 748 1455 3800 4919 8049 5 264 419 516 868 1222 5 260 19073 24446 65904 50227 5 196 4456 4784 83171 95673 5 16 17 18 19 20 5 182 277 388 1070 2021 5 279 1317 4410 14701 2557...