// #define _FORTIFY_SOURCE 0
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("no-stack-protector")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,tune=native")
// //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
// #pragma GCC optimize("inline")
// #pragma GCC optimize("-fgcse")
// #pragma GCC optimize("-fgcse-lm")
// #pragma GCC optimize("-fipa-sra")
// #pragma GCC optimize("-ftree-pre")
// #pragma GCC optimize("-ftree-vrp")
// #pragma GCC optimize("-fpeephole2")
// #pragma GCC optimize("-ffast-math")
// #pragma GCC optimize("-fsched-spec")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC optimize("-falign-jumps")
// #pragma GCC optimize("-falign-loops")
// #pragma GCC optimize("-falign-labels")
// #pragma GCC optimize("-fdevirtualize")
// #pragma GCC optimize("-fcaller-saves")
// #pragma GCC optimize("-fcrossjumping")
// #pragma GCC optimize("-fthread-jumps")
// #pragma GCC optimize("-funroll-loops")
// #pragma GCC optimize("-fwhole-program")
// #pragma GCC optimize("-freorder-blocks")
// #pragma GCC optimize("-fschedule-insns")
// #pragma GCC optimize("inline-functions")
// #pragma GCC optimize("-ftree-tail-merge")
// #pragma GCC optimize("-fschedule-insns2")
// #pragma GCC optimize("-fstrict-aliasing")
// #pragma GCC optimize("-fstrict-overflow")
// #pragma GCC optimize("-falign-functions")
// #pragma GCC optimize("-fcse-skip-blocks")
// #pragma GCC optimize("-fcse-follow-jumps")
// #pragma GCC optimize("-fsched-interblock")
// #pragma GCC optimize("-fpartial-inlining")
// #pragma GCC optimize("no-stack-protector")
// #pragma GCC optimize("-freorder-functions")
// #pragma GCC optimize("-findirect-inlining")
// #pragma GCC optimize("-fhoist-adjacent-loads")
// #pragma GCC optimize("-frerun-cse-after-loop")
// #pragma GCC optimize("inline-small-functions")
// #pragma GCC optimize("-finline-small-functions")
// #pragma GCC optimize("-ftree-switch-conversion")
// #pragma GCC optimize("-foptimize-sibling-calls")
// #pragma GCC optimize("-fexpensive-optimizations")
// #pragma GCC optimize("-funsafe-loop-optimizations")
// #pragma GCC optimize("inline-functions-called-once")
// #pragma GCC optimize("-fdelete-null-pointer-checks")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned ll
#define vi vector<ll>
#define vvi vector<vi>
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define ld long double
#define pii pair<ll, ll>
#define mt make_tuple
#define mn(a, b) a = min(a, b)
#define mx(a, b) a = max(a, b)
#define base complex<ld>
using namespace std;
const ll INF = (ll)2e9;
const ll inf = (ll)1e18;
const ld eps = (ld)1e-12;
const ll mod = (ll)1e9 + 7;
const ll p = 31;
const ll mod2 = (ll)1e9 + 7;
const ll MAXN = (ll)500 + 1;
const ll MAXC = (ll)1e6 + 11;
const ll MAXE = (ll)100;
const ll MAXLOG = (ll)19;
const ll asci = (ll)256;
const ll block = 31623;
const ld PI = acos(-1LL);
const ld e = 2.7182818284;
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
// typedef tree<
// pii,
// null_type,
// less<pii>,
// rb_tree_tag,
// tree_order_statistics_node_update>
// ordered_set;
ll int_rand() {
if (RAND_MAX == (1LL << 15) - 1LL) {
return (rand() << 15) + rand();
}
return rand();
}
ll ll_rand() {
return ((ll)int_rand() << 30LL) + int_rand();
}
istream& operator >>(istream &in, pii &x) {
cin >> x.first >> x.second;
return in;
}
template <class T>
istream& operator >>(istream &in, vector<T> &arr){
for (T &cnt : arr) {
in >> cnt;
}
return in;
}
ll sum[20][172];
ll val[172];
ll digit_sum(ll x) {
if (x < 10) return x;
string s = to_string(x);
ll ans = 0;
for (ll i = 0; i < s.size(); ++i) {
ans += s[i] - '0';
}
return digit_sum(ans);
}
void precalc() {
sum[0][0] = 1;
for (ll len = 0; len < 19; ++len) {
for (ll s = 0; s < 170; ++s) {
for (ll d = 0; d < 10; ++d) {
sum[len + 1][s + d] += sum[len][s];
}
}
}
for (ll s = 0; s < 170; ++s) val[s] = digit_sum(s);
}
vi ans(string x) {
vi ans(172);
ll pref = 0;
for (ll i = 0; i < x.size(); ++i) {
for (ll d = 0; d < x[i] - '0'; ++d) {
for (ll s = 0; s < 172; ++s) {
if (!sum[x.size() - i - 1][s]) continue;
ans[s + d + pref] += sum[x.size() - i - 1][s];
}
}
pref += x[i] - '0';
}
ans[pref]++;
return ans;
}
void solve() {
ll l, r; cin >> l >> r;
l--;
ll cnt = 0;
vi la = ans(to_string(l));
vi ra = ans(to_string(r));
for (ll i = 0; i < 172; ++i) {
cnt += val[i] * (ra[i] - la[i]);
}
cout << cnt << "\n";
}
signed main() {
srand(time(0LL));
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#else
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
#endif
cout.precision(30);
precalc();
ll t; cin >> t;
while (t--)
solve();
return 0LL;
}
Compilation message
trol.cpp: In function 'long long int digit_sum(long long int)':
trol.cpp:127:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
127 | for (ll i = 0; i < s.size(); ++i) {
| ~~^~~~~~~~~~
trol.cpp: In function 'std::vector<long long int> ans(std::string)':
trol.cpp:148:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
148 | for (ll i = 0; i < x.size(); ++i) {
| ~~^~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
2 ms |
364 KB |
Output is correct |
| 3 |
Correct |
4 ms |
364 KB |
Output is correct |
| 4 |
Correct |
2 ms |
364 KB |
Output is correct |
| 5 |
Correct |
5 ms |
364 KB |
Output is correct |
