#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
int main () {
ios::sync_with_stdio(0); cin.tie(0);
int M, L;
cin >> M >> L;
map<int, int> sums;
sums[0] = 0;
vector<int> a;
for (int i = -M, x; i <= M; i++) {
cin >> x;
for (int j = 0; j < x; j++) {
a.push_back(i);
}
}
int N = (int)a.size();
for (int i = 0; i < N; i++) {
map<int, int> curr;
for (auto &[k, v]: sums) {
curr[a[i] + k] = max(curr[a[i] + k], v + 1);
}
for (auto &[k, v]: curr) {
sums[k] = max(sums[k], v);
}
}
if (sums.count(L)) {
cout << sums[L] << '\n';
} else {
cout << "impossible\n";
}
return 0;
}
Compilation message
interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
20 | if(v.size() != N) {
| ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
36 | if(v.size() != N) {
| ~~~~~~~~~^~~~
/usr/bin/ld: /tmp/ccTUnFdB.o: in function `main':
interface.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cchhRAYB.o:art.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccTUnFdB.o: in function `main':
interface.cpp:(.text.startup+0x16): undefined reference to `solve(int)'
collect2: error: ld returned 1 exit status
