제출 #753358

#제출 시각아이디문제언어결과실행 시간메모리
753358keta_tsimakuridzeSum Zero (RMI20_sumzero)C++14
0 / 100
3 ms980 KiB
#include<bits/stdc++.h> #define f first #define s second #define ll long long #define pii pair<int,int> using namespace std; const int N = 4e5 + 1, mod = 1e9 + 7; // ! int t, R[N][3], f[N]; ll a[N]; vector<pair<ll, int>> x; main(){ ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0); int n; cin >> n; for(int i = 1; i <= n; i++) { cin >> a[i]; a[i] += a[i - 1]; x.push_back({a[i], i}); } x.push_back({0, 0}); sort(x.begin(), x.end()); int cur = 0; vector<int> id(n + 1); for(int i = 0; i < x.size(); i++) { if(!i || x[i].f != x[i - 1].f) ++cur; id[x[i].s] = cur; } int mn = n + 1; for(int j = 0; j <= 2; j++) R[n + 1][j] = n + 1; vector<int> x(n + 5); for(int i = n; i >= 0; i--) { if(f[id[i]]) mn = min(mn, f[id[i]]); x[i] = mn; f[id[i]] = i; } id.clear(); id.shrink_to_fit(); x.clear(); x.shrink_to_fit(); int q; cin >> q; vector<int> l(q + 1), r(q + 1), ans(q + 1); for(int i = 1; i <= q; i++) { cin >> l[i] >> r[i]; --l[i]; } for(int I = 6; I >= 0; I--) { // i * 5 ... i * 5 + 4 for(int i = 0; i <= n; i++) R[i][0] = x[i]; for(int j = 1; j <= I * 3 + 2; j++) { for(int i = 0; i <= n; i++) { R[i][j % 3] = R[R[i][(j % 3 + 2) % 3]][(j % 3 + 2) % 3]; } } for(int i = 1; i <= q; i++) { for(int j = 2; j >= 0; j--) if(R[l[i]][j] <= r[i]) ans[i] += 1 << (I * 3 + j), l[i] = R[l[i]][j]; } } for(int i = 1; i <= q; i++) cout << ans[i] << "\n"; }

컴파일 시 표준 에러 (stderr) 메시지

sumzero.cpp:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~
sumzero.cpp: In function 'int main()':
sumzero.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i = 0; i < x.size(); i++) {
      |                    ~~^~~~~~~~~~
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