Submission #1296939

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296939		dosts	Peru (RMI20_peru)	C++20	Compilation error	0 ms	0 KiB

peru

#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#define int long long
#define pii pair<int,int>
#define vi vector<int>
#define ff first
#define ss second
#define sp << " " <<
#define all(x) x.begin(),x.end()
#define big(x) ((int)(x.size()))
using namespace std;
const int MOD = 1e9+7, LIM = 1e6+1, inf = 2e18;

const int N = 1e5+1;
int add(int x,int y) {
    if ((x + y) >= MOD) return x + y - MOD;
    return x + y;
}

int mult(int x,int y) {
    return (1LL * x * y) % MOD;
}

int expo(int x,int y) {
    if (!y) return 1;
    int e = expo(x, y >> 1);
    e = mult(e, e);
    if (y & 1) e = mult(e, x);
    return e;
}
void solve() {
    int n,k;
    cin >> n >> k;
    vi a(n+1);
    for (int i=1;i<=n;i++) cin >> a[i];
    vi dp(n+1,inf);
    dp[0] = 0;
    a[0] = inf;
    deque<int> stk;
    for (int i=0;i<=n;i++) {
        while (!stk.empty() && a[stk.back()] <= a[i]) {
            stk.pop_back();
        }
        stk.push_back(i);
        for (int j = big(stk)-1;j>=0;j--) {
            if (stk[j] >= i-k+1) {
                dp[i] = min(dp[i],a[stk[j]]+(j?(dp[max(i-k,stk[j-1])]):0ll));
            }
        }
    }
/*     for (int i=1;i<=n;i++) cout << dp[i] << ' ';
    cout << '\n'; */
    int mlt = 1;
    int ans = 0;
    for (int i = n;i>=1;i--) {
        ans = add(ans,mult(dp[i],mlt));
        mlt = mult(mlt,23);
    }
    cout << ans << '\n';
} 

signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    int t = 1;
    //cin >> t;
    while (t --> 0) solve();
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccj9zNT0.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccn99bko.o:peru.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccj9zNT0.o: in function `main':
grader.cpp:(.text.startup+0x181): undefined reference to `solve(int, int, int*)'
collect2: error: ld returned 1 exit status