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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#611935 | #6836. A Plus B Problem | wangcq | RE | 0ms | 3636kb | C++23 | 5.0kb | 2024-10-05 00:28:14 | 2024-10-05 00:28:14 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
const int N = 1000010;
typedef long long ll;
typedef pair<int, int> pii;
std::mt19937 rng {std::chrono::steady_clock::now().time_since_epoch().count()};
template <typename T>
void debug(T x) {
cerr << x << '\n';
}
template <typename T, typename... Args>
void debug(T x, Args... args) {
cerr << x << ' ';
debug(args...);
}
int tmp[N];
struct node {
int l, r, len;
int val;
int r0, r9;
int lz0, lz9;
} tr[N * 4];
void change(int u) {
tr[u].r0 = tr[u].r9 = 0;
if (tr[u].val == 0) tr[u].r0 = 1;
else if (tr[u].val == 9) tr[u].r9 = 1;
}
void pushup(node &t, node &le, node &ri) {
t.r0 = (ri.r0 + (ri.r0 == ri.len ? le.r0 : 0));
t.r9 = (ri.r9 + (ri.r9 == ri.len ? le.r9 : 0));
}
void pushup(int u) {
pushup(tr[u], tr[u << 1], tr[u << 1 | 1]);
}
void build(int u, int l, int r) {
tr[u] = {l, r, r - l + 1, 0, 0, 0, 0, 0};
if (l == r) {
tr[u].val = tmp[l];
change(u);
return ;
}
int mid = l + r >> 1;
build(u << 1, l, mid);
build(u << 1 | 1, mid + 1, r);
pushup(u);
}
void change0(node &t) {
t.lz0 = 1; t.lz9 = 0;
t.r0 = t.len;
t.r9 = 0;
t.val = 0;
}
void change9(node &t) {
t.lz0 = 0; t.lz9 = 1;
t.r9 = t.len;
t.r0 = 0;
t.val = 9;
}
void pushdown(int u) {
if (tr[u].lz0) {
change0(tr[u << 1]);
change0(tr[u << 1 | 1]);
tr[u].lz0 = 0;
} else if (tr[u].lz9) {
change9(tr[u << 1]);
change9(tr[u << 1 | 1]);
tr[u].lz9 = 0;
}
}
int fval(int u, int x) {
if (tr[u].l == x && tr[u].r == x) {
return tr[u].val;
} else {
pushdown(u);
int mid = tr[u].l + tr[u].r >> 1;
if (x <= mid) return fval(u << 1, x);
else return fval(u << 1 | 1, x);
}
}
void modify(int u, int x, int c) {
if (tr[u].l == x && tr[u].r == x) {
tr[u].val = (tr[u].val + c + 10) % 10;
change(u);
return ;
}
pushdown(u);
int mid = tr[u].l + tr[u].r >> 1;
if (x <= mid) modify(u << 1, x, c);
else modify(u << 1 | 1, x, c);
pushup(u);
}
int get (int p, int r, int w){
if (!r) return 0;
if (tr[p].r <= r) {
if (w == 0) return tr[p].r0;
return tr[p].r9;
}
pushdown(p);
int mid = (tr[p].l + tr[p].r) >> 1;
if(r <= mid) return get(p << 1, r, w);
else {
int x = get(p << 1 | 1, r, w);
if (x == r - mid) x += get(p << 1, r, w);
return x;
}
}
void tp(int u, int l, int r, int w) {
if (tr[u].l >= l && tr[u].r <= r) {
if (w == 0) {
change0(tr[u]);
} else {
change0(tr[u]);
}
return ;
}
pushdown(u);
int mid = tr[u].l + tr[u].r >> 1;
if (l <= mid) tp(u << 1, l, r, w);
if (r > mid) tp(u << 1 | 1, l, r, w);
pushup(u);
}
void solve() {
int n, q;
cin >> n >> q;
string s1, s2;
cin >> s1 >> s2; s1 = ' ' + s1; s2 = ' ' + s2;
vector<int> a(n + 1), b(n + 1);
for (int i = 1; i <= n; i ++ ) {
a[i] = s1[i] - '0';
b[i] = s2[i] - '0';
}
for (int i = n; i >= 1; i -- ) {
int tt = (s1[i] - '0') + (s2[i] - '0');
tmp[i - 1] += ((tt + tmp[i]) / 10);
tmp[i] = (tmp[i] + tt) % 10;
}
build(1, 1, n);
while (q -- ) {
int r, c, d;
cin >> r >> c >> d;
int del = 0;
if (r == 1) {
del = d - a[c];
a[c] = d;
} else {
del = d - b[c];
b[c] = d;
}
int x = fval(1, c);
if (! del) cout << x << " 0" << '\n';
else if (del > 0) {
modify(1, x, del);
if (x + del >= 10) {
int cnt = get(1, c - 1, 9);
int idx = c - cnt - 1;
int ans = c - idx + 1;
if (idx == 0) ans --;
if (idx + 1 <= c - 1) tp(1, idx + 1, c - 1, 0);
if (idx) modify(1, idx, 1);
cout << fval(1, c) << ' ' << ans + 1 << '\n';
} else {
cout << fval(1, c) << ' ' << 2 << '\n';
}
} else if(del < 0) {
del = -del;
modify(1, c, -del);
if (x - del < 0) {
int cnt = get(1, c - 1, 0);
int idx = c - cnt - 1;
int ans = c - idx + 1;
if (idx == 0) ans --;
if (idx + 1 <= c - 1) tp(1, idx + 1, c - 1, 9);
if (idx) modify(1, idx, -1);
cout << fval(1, c) << ' ' << ans + 1 << '\n';
} else {
cout << fval(1, c) << ' ' << 2 << '\n';
}
}
}
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int T = 1;
// cin >> T;
while (T -- ) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3636kb
input:
5 5 01234 56789 2 1 0 2 2 1 2 3 2 2 4 3 2 5 4
output:
0 2 3 2 5 3 7 3 8 3
result:
ok 5 lines
Test #2:
score: -100
Runtime Error
input:
1 1 1 1 1 1 9