提出 #74958539

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ソースコード 拡げる

#include <bits/stdc++.h>

#define popcnt(x) __builtin_popcount(x)
#define popcntll(x) __builtin_popcountll(x)

using namespace std;
using lint = long long;
using pii = pair<int, int>;
using pll = pair<lint, lint>;
template <typename T>
using vc = vector<T>;
template <typename T>
using vvc = vector<vector<T>>;
template <typename T>
inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
template <typename T>
inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

const double PI = acos(-1);
constexpr lint ten(int n) { return n == 0 ? 1 : ten(n - 1) * 10; }

vector<string> vec_splitter(string s) {
    s += ',';
    vector<string> res;
    while (not s.empty()) {
        res.push_back(s.substr(0, s.find(',')));
        s = s.substr(s.find(',') + 1);
    }
    return res;
}

void debug_out(vector<string> __attribute__((unused)) args,
               __attribute__((unused)) int idx,
               __attribute__((unused)) int LINE_NUM) {
    cerr << endl;
}
template <typename Head, typename... Tail>
void debug_out(vector<string> args, int idx, int LINE_NUM, Head H, Tail... T) {
    if (idx > 0) cerr << ",";
    else
        cerr << "Line(" << LINE_NUM << "): ";
    stringstream ss;
    ss << H;
    cerr << args[idx] << " = " << ss.str();
    debug_out(args, idx + 1, LINE_NUM, T...);
}
#ifdef DEBUG
#define debug(...) debug_out(vec_splitter(#__VA_ARGS__), 0, __LINE__, __VA_ARGS__)
#else
#define debug(...) 417
#endif

void solve(std::istream &in, std::ostream &out) {
    ios_base::sync_with_stdio(false);
    in.tie(nullptr), out.tie(nullptr);

    string S;
    cin >> S;

    int a = S[0] - '0';
    int b = S[2] - '0';

    cout << a * b << '\n';
}

int main() {
    istream &in(std::cin);
    ostream &out(std::cout);
    solve(in, out);
    return 0;
}

提出情報

ジャッジ結果