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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#756797 | #9731. Fuzzy Ranking | electricstick | WA | 2ms | 5864kb | C++23 | 2.5kb | 2024-11-16 21:58:58 | 2024-11-16 21:58:58 |
Judging History
answer
#include <algorithm>
#include <cstdio>
#include <vector>
const int N = 2e5 + 10;
int n, m, q;
long long ans;
std::vector<int> a[N], g[N], rr[N], ll[N];
std::vector<long long> b[N];
int dfn[N], low[N], ins[N], bel[N], stk[N], top, siz[N];
int cnt, tot;
void fmin(int &a, int b) {if (a > b) a = b;}
void dfs(int u) {
low[u] = dfn[u] = ++cnt;
stk[++top] = u;
for (auto v : g[u]) {
if (!dfn[v]) {
dfs(v);
fmin(low[u], low[v]);
} else {
if (ins[v]) {
fmin(low[u], dfn[v]);
}
}
}
if (low[u] >= dfn[u]) {
++tot;
while (true) {
int x = stk[top--];
ins[x] = false;
bel[x] = tot;
if (x == u) break;
++siz[x];
}
}
}
int main() {
int t;
scanf("%d", &t);
while (t--) {
ans = 0;
scanf("%d%d%d", &n, &m, &q);
for (int i = 1; i <= m; i++) {
a[i].assign(n + 5, 0);
b[i].assign(n + 5, 0);
for (int j = 1; j <= n; j++) {
scanf("%d", &a[i][j]);
if (j > 1) {
g[a[i][j - 1]].push_back(a[i][j]);
}
}
}
cnt = tot = top = 0;
dfs(1);
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= n; j++) {
if (bel[a[i][j]] != bel[a[i][j - 1]]) {
ll[i].push_back(j);
if (j > 1) {
rr[i].push_back(j - 1);
}
}
}
rr[i].push_back(n);
for (int j = 0; j < ll[i].size(); ++j) {
int l = ll[i][j], r = rr[i][j];
long long n = r - l + 1;
b[i][l] = n * (n - 1) / 2;
}
for (int j = 1; j <= n; j++) {
b[i][j] += b[i][j - 1];
}
}
while (q--) {
int i, l, r;
scanf("%d%d%d", &i, &l, &r);
i = (i + ans) % m + 1;
l = (l + ans) % n + 1;
r = (r + ans) % n + 1;
ans = 0;
int lr = *std::lower_bound(rr[i].begin(), rr[i].end(), l);
int rl = *--std::upper_bound(ll[i].begin(), ll[i].end(), r);
if (lr <= r && rl >= l) {
ans = b[i][rl - 1] - b[i][lr];
long long n = rl - l + 1;
ans += n * (n - 1) / 2;
n = r - rl + 1;
ans += n * (n - 1) / 2;
} else {
long long n = r - l + 1;
ans += n * (n - 1) / 2;
}
printf("%lld\n", ans);
}
for (int i = 1; i <= n; i++) {
g[i].clear();
}
for (int i = 1; i <= m; i++) {
a[i].clear();
b[i].clear();
ll[i].clear();
rr[i].clear();
}
}
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 5864kb
input:
2 5 2 2 1 2 3 4 5 5 4 3 2 1 1 0 2 1 2 1 5 3 3 1 2 3 4 5 1 3 2 4 5 1 2 3 5 4 0 0 2 0 2 3 1 0 3
output:
3 10 3 1 6
result:
wrong answer 3rd lines differ - expected: '1', found: '3'