Submission #1317241

#	Time	Username	Problem	Language	Result	Execution time	Memory
1317241		foxserg	A + B (IOI24_aplusb)	C++20	Compilation error	0 ms	0 KiB

aplusb

#include <bits/stdc++.h>
// #include <bits/extc++.h>

// #pragma GCC optimize("Ofast,unroll-loops,O3")
// #pragma GCC target("avx,avx2,fma")

using namespace std;
// using namespace __gnu_pbds;
// using namespace __gnu_cxx;

// template <typename T>
// using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
// template <typename T>
// using ordered_multiset = tree <T, null_type, less_equal <T>, rb_tree_tag, tree_order_statistics_node_update>;

using ll = long long;
using ld = long double;
using ull = unsigned long long;
using uint = unsigned int;
using i128 = __int128_t;

istream& operator>>(istream& is, i128& x) {
    long long a;
    is >> a;
    x = (i128) a;
    return is;
}
ostream& operator<<(ostream& os, i128& x) {
    long long a = (long long) x;
    os << a;
    return os;
}

template <typename T>
ostream& operator<<(ostream& is, vector <T>& a) {
    for (uint i = 0; i < a.size(); ++i) is << a[i] << " ";
    return is;
}

#ifdef LOCAL
    # define DEBUG(x) cerr << "(" << __LINE__ << ") " << #x << ":  " << x << endl;
#else
    # define DEBUG(x)
#endif

const ll inf = 1e18 + 1e16;
const int inf_t = 1e9 + 7;
const ll mod = 1e9 + 7;

int sum(int a, int b) {
    int c = 0;
    if (a <= 10 && b <= 10) {
        c = a + b;
    }
    return c;
}

signed main() {
    #ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
    #endif
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int a, b;
    cin >> a >> b;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccKd6W4V.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc5EOYPz.o:aplusb.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status