#include <bits/stdc++.h> using namespace std; #define name "TENBAI" #define fi first #define se second #define int long long #define endl '\n' #define setmin(x, y) x = min((x), (y)) #define setmax(x, y) x = max((x), (y)) #define sqr(x) ((x) * (x)) #define all(x) x.begin(), x.end() mt19937 hdp(chrono::high_resolution_clock::now().time_since_epoch().count()); int rand(int l, int r){return l + ((hdp() % (r - l + 1)) + r - l + 1) % (r - l + 1);} const int NM = 3e5 + 5; int n, a[NM]; void solve() { cin >> n; int mx = 0, mn = 0, cr = 0; for (int i = 1; i < n; i++) { cin >> a[i]; cr += a[i]; setmax(mx, cr); setmin(mn, cr); } if (mx - mn + 1 != n) { cout << -1; return; } cr = -mn + 1; cout << cr << ' '; for (int i = 1; i < n; i++) cr += a[i], cout << cr << ' '; } signed main() { if (fopen("in.txt", "r")) { freopen("in.txt", "r", stdin); freopen("out.txt", "w", stdout); } else if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); } ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int tc = 1; // cin >> tc; while (tc--) solve(); }

Labels.cpp: In function 'int main()':
Labels.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         freopen("in.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Labels.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen("out.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Labels.cpp:52:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         freopen(name".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Labels.cpp:53:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |         freopen(name".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~