Submission #1300099

#	Time	Username	Problem	Language	Result	Execution time	Memory
1300099		raymoo_	Labels (NOI20_labels)	C++17	100 / 100	41 ms	7136 KiB

Labels

#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pii pair<int, int>
#define bend(v) v.begin(),v.end()
#define vect vector 
#define prq priority_queue
#define umap unordered_map
#define eb emplace_back
#define pb push_back
#define pob pop_back
#define ef emplace_front
#define pf push_front
#define pof pop_front
#define el "\n"
#define deb cout<<"\nok\n";return 
#define nextl cout<<"\n"
#define lwb lower_bound 
#define upb upper_bound
#define rs resize
#define popcnt __builtin_popcount
#define clz __builtin_clz
#define ctz __builtin_ctz
#define ll long long 
#define dbl long double
#define int long long


#define FILE "ijustwannabepartofyourskibidi"
void IO(){
    if(fopen(FILE".in", "r")){
        freopen(FILE".in", "r", stdin);
        freopen(FILE".out", "w", stdout);
    }
    else if(fopen(FILE".inp", "r")){
        freopen(FILE".inp", "r", stdin);
        freopen(FILE".out", "w", stdout);
    }
}

const ll N = 3e5 + 69, MOD = 1e9+7, INF = 1000000000000000069;

mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

ll rand(ll l, ll r){
    return uniform_int_distribution<ll>(l, r)(rng);
}
ll pm(ll a,const ll b=MOD){return ((a%b)+b)%b;}
ll sq(ll x){return x*x;}
ll __lcm(ll a, ll b, const ll lim=LLONG_MAX){
    if(a == -1 || b == -1)return -1;
    ll g = __gcd(a,b);
    if(b/g > lim/a)return -1;
    return (a/g)*b;
}

void sol(){
    int n;
    cin >> n;
    int d[n-1];
    for(int& i : d) cin >> i;
    int mxpfs = 0, mnpfs = 0, pfs = 0;
    for(int i : d){
        pfs += i;
        mxpfs = max(mxpfs, pfs);
        mnpfs = min(mnpfs, pfs);
    }   

    int st = -1;
    for(int i=1;n>=i;i++){
        if(1 <= i + mnpfs && i + mxpfs <= n){
            if(st == -1) st = i;
            else{
                cout << -1;
                return;
            }
        }
    }

    int ans[n];
    ans[0] = st;
    for(int i=0;n-1>i;i++){
        ans[i+1] = d[i] + ans[i];
    }

    for(int i : ans) cout << i << ' ' ;
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);cout.tie(NULL);
    IO();
    int t = 1;
    // cin >> t;
    while(t--) sol();
}
/*
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*/

Compilation message (stderr)

Labels.cpp: In function 'void IO()':
Labels.cpp:33:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |         freopen(FILE".in", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Labels.cpp:34:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |         freopen(FILE".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Labels.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen(FILE".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Labels.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         freopen(FILE".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 15 / 15
• Subtask 3: 25 / 25
• Subtask 4: 18 / 18
• Subtask 5: 35 / 35