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This commit is contained in:
Barrett Ruth 2025-12-13 18:27:59 -06:00
parent e371dd60e7
commit 5dac8c409f
284 changed files with 1076 additions and 0 deletions

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codeforces/560/a.cc Normal file
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#include <bits/stdc++.h> // {{{
#include <version>
#ifdef __cpp_lib_ranges_enumerate
#include <ranges>
namespace rv = std::views;
namespace rs = std::ranges;
#endif
#pragma GCC optimize("O2,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std;
using i16 = int16_t;
using u16 = uint16_t;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
using f64 = double;
using f128 = long double;
#if __cplusplus >= 202002L
template <typename T>
constexpr T MIN = std::numeric_limits<T>::min();
template <typename T>
constexpr T MAX = std::numeric_limits<T>::max();
#endif
#ifdef LOCAL
#define db(...) std::print(__VA_ARGS__)
#define dbln(...) std::println(__VA_ARGS__)
#else
#define db(...)
#define dbln(...)
#endif
// }}}
void solve() {
u64 x, y, n;
string s;
cin >> n >> x >> y >> s;
u32 ans = 0;
reverse(begin(s), end(s));
for (u32 i = 0; i < y; ++i) {
ans += (s[i] - '0') % 10 != 0;
}
ans += (s[y] - '0') != 1;
for (u32 i = y + 1; i < x; ++i) {
ans += (s[i] - '0') != 0;
}
println("{}", ans);
}
int main() { // {{{
std::cin.exceptions(std::cin.failbit);
#ifdef LOCAL
std::cerr.rdbuf(std::cout.rdbuf());
std::cout.setf(std::ios::unitbuf);
std::cerr.setf(std::ios::unitbuf);
#else
std::cin.tie(nullptr)->sync_with_stdio(false);
#endif
u32 tc = 1;
// std::cin >> tc;
for (u32 t = 0; t < tc; ++t) {
solve();
}
return 0;
}
// }}}

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11 5 2
11010100101

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1

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11 5 1
11010100101

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3

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3 1 4 1

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3

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1 1 1

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1 1 1 2 2

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2

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4
good

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0
good

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4
aabc

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ab

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aaa

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8 2 12 6 4 24 16 3
1
2

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4

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1 8 7 2 4
9 7 2 9 3

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646

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1
1000000
1000000

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757402647

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2
1 3
4 2

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5 6
1 2 0 2 0
2 4
3 3
1 5
1 2
1 5
2 3

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5 3
4 2 1 3 2
3 5
4 2
2 5

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5 6
1 2 0 2 0
2 4
3 3
1 5
1 2
1 5
2 3

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8

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5 3
4 2 1 3 2
3 5
4 2
2 5

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