#include<bits/stdc++.h>
#pragma optimize ("g",on)
#pragma GCC optimize("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
//01001101 01100001 01101011 01101000 01100001 01100111 01100001 01111001
using namespace std;
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()
#define ld double
#define ull unsigned long long
#define ff first
#define ss second
#define fix fixed << setprecision
#define pii pair<int, int>
#define E exit (0)
const int inf = 1e9, N = 1e5 + 1, mod = 998244353;
vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
main() {
//freopen("cowrect.in", "r", stdin);
//freopen("cowrect.out", "w", stdout);
ios_base::sync_with_stdio(NULL);
cin.tie(NULL);
int n, k;
cin >> n >> k;
int a[n + 1];
for (int i = 1; i <= n; i++) cin >> a[i];
if (k == 2) {
multiset<pii> s;
for (int i = 1; i <= n; i++) {
s.insert({a[i], i});
}
vector<pii> ans;
while (sz(s) > 1) {
pii x = *s.begin(), y = *--s.end();
s.erase(s.begin());
s.erase(--s.end());
x.ff--;
y.ff--;
ans.pb({x.ss, y.ss});
if (x.ff)
s.insert(x);
if (y.ff)
s.insert(y);
}
if (sz(s) == 1) cout << -1, E;
cout << sz(ans) << nl;
for (auto e: ans) cout << 1 << ' ' << e.ff << ' ' << e.ss << nl;
}
}
Compilation message
nicegift.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
3 | #pragma optimize ("g",on)
|
nicegift.cpp:33:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
33 | main() {
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
n=4 |
2 |
Correct |
0 ms |
204 KB |
n=3 |
3 |
Correct |
0 ms |
204 KB |
n=3 |
4 |
Correct |
0 ms |
204 KB |
n=4 |
5 |
Correct |
1 ms |
204 KB |
n=4 |
6 |
Correct |
0 ms |
204 KB |
n=2 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
n=4 |
2 |
Correct |
0 ms |
204 KB |
n=3 |
3 |
Correct |
0 ms |
204 KB |
n=3 |
4 |
Correct |
0 ms |
204 KB |
n=4 |
5 |
Correct |
1 ms |
204 KB |
n=4 |
6 |
Correct |
0 ms |
204 KB |
n=2 |
7 |
Correct |
0 ms |
204 KB |
n=5 |
8 |
Correct |
1 ms |
460 KB |
n=8 |
9 |
Correct |
4 ms |
588 KB |
n=14 |
10 |
Correct |
3 ms |
432 KB |
n=11 |
11 |
Correct |
28 ms |
3608 KB |
n=50000 |
12 |
Correct |
28 ms |
4168 KB |
n=50000 |
13 |
Correct |
15 ms |
1132 KB |
n=10 |
14 |
Correct |
18 ms |
1208 KB |
n=685 |
15 |
Correct |
17 ms |
1232 KB |
n=623 |
16 |
Correct |
11 ms |
844 KB |
n=973 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
n=4 |
2 |
Correct |
0 ms |
204 KB |
n=3 |
3 |
Correct |
0 ms |
204 KB |
n=3 |
4 |
Correct |
0 ms |
204 KB |
n=4 |
5 |
Correct |
1 ms |
204 KB |
n=4 |
6 |
Correct |
0 ms |
204 KB |
n=2 |
7 |
Correct |
0 ms |
204 KB |
n=5 |
8 |
Correct |
1 ms |
460 KB |
n=8 |
9 |
Correct |
4 ms |
588 KB |
n=14 |
10 |
Correct |
3 ms |
432 KB |
n=11 |
11 |
Correct |
28 ms |
3608 KB |
n=50000 |
12 |
Correct |
28 ms |
4168 KB |
n=50000 |
13 |
Correct |
15 ms |
1132 KB |
n=10 |
14 |
Correct |
18 ms |
1208 KB |
n=685 |
15 |
Correct |
17 ms |
1232 KB |
n=623 |
16 |
Correct |
11 ms |
844 KB |
n=973 |
17 |
Incorrect |
0 ms |
208 KB |
Unexpected end of file - int32 expected |
18 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2069 ms |
117152 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
n=4 |
2 |
Correct |
0 ms |
204 KB |
n=3 |
3 |
Correct |
0 ms |
204 KB |
n=3 |
4 |
Correct |
0 ms |
204 KB |
n=4 |
5 |
Correct |
1 ms |
204 KB |
n=4 |
6 |
Correct |
0 ms |
204 KB |
n=2 |
7 |
Correct |
0 ms |
204 KB |
n=5 |
8 |
Correct |
1 ms |
460 KB |
n=8 |
9 |
Correct |
4 ms |
588 KB |
n=14 |
10 |
Correct |
3 ms |
432 KB |
n=11 |
11 |
Correct |
28 ms |
3608 KB |
n=50000 |
12 |
Correct |
28 ms |
4168 KB |
n=50000 |
13 |
Correct |
15 ms |
1132 KB |
n=10 |
14 |
Correct |
18 ms |
1208 KB |
n=685 |
15 |
Correct |
17 ms |
1232 KB |
n=623 |
16 |
Correct |
11 ms |
844 KB |
n=973 |
17 |
Incorrect |
0 ms |
208 KB |
Unexpected end of file - int32 expected |
18 |
Halted |
0 ms |
0 KB |
- |