Submission #1208894

#TimeUsernameProblemLanguageResultExecution timeMemory
1208894andrejikusBoxes with souvenirs (IOI15_boxes)C++20
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> //#include "boxes.h" using namespace std; typedef long long ll; void DBG() { cerr << "]" << endl; } template<class H, class... T> void DBG(H h, T... t) { cerr << to_string(h); if(sizeof...(t)) cerr << ", "; DBG(t...); } #define dbg(...) cerr << "[" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__) static char _buffer[1024]; static int _currentChar = 0; static int _charsNumber = 0; static FILE *_inputFile, *_outputFile; const int N = 1e7 + 3; const ll inf = 1e18; ll pref[N], suf[N]; static inline int _read() { if (_charsNumber < 0) { exit(1); } if (!_charsNumber || _currentChar == _charsNumber) { _charsNumber = (int)fread(_buffer, sizeof(_buffer[0]), sizeof(_buffer), _inputFile); _currentChar = 0; } if (_charsNumber <= 0) { return -1; } return _buffer[_currentChar++]; } static inline int _readInt() { int c, x, s; c = _read(); while (c <= 32) c = _read(); x = 0; s = 1; if (c == '-') { s = -1; c = _read(); } while (c > 32) { x *= 10; x += c - '0'; c = _read(); } if (s < 0) x = -x; return x; } long long delivery(int n, int k, int l, int p[]) { ll ans = inf; for (int r = 1; r <= n; r++) { int ost2 = r%k; int j = (ost2 == 0 ? k-1 : ost2-1); suf[j] += l-p[n-r]; } for (int i = 0; i <= n; i++) { ll res = 0; int r = (n-i); int ost1 = i%k; int j = (ost1 == 0 ? k-1 : ost1-1); if (i > 0) { res += p[i-1]; res += min(p[i-1], l-p[i-1]); res += 2*pref[j]; pref[j] += p[i-1]; } //dbg(pref[j], res, i); int ost2 = r%k; j = (ost2 == 0 ? k-1 : ost2-1); if (r > 0) { suf[j] -= l-p[n-r]; res += (l-p[n-r]); res += min(l-p[n-r], p[n-r]); res += 2*suf[j]; } //dbg(suf[j], res, i, j); ans = min(ans, res); } return ans; } int main() { /*_inputFile = fopen("boxes.in", "rb"); _outputFile = fopen("boxes.out", "w");*/ int N, K, L; cin >> N >> K >> L; int *p = (int*)malloc(sizeof(int) * (unsigned int)N); for (int i = 0; i < N; i++) { cin >> p[i]; } cout << delivery(N, K, L, p) << "\n"; //fprintf(_outputFile, "%lld\n", delivery(N, K, L, p)); return 0; } /* 3 2 8 1 2 5 */

Compilation message (stderr)

/usr/bin/ld: /tmp/ccKJ31V3.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/cc63hFDS.o:boxes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status