Submission #297805

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
297805	2020-09-12 01:14:39	juckter	Gondola (IOI14_gondola)	C++14	100 / 100	75 ms	5112 KiB

gondola

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#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int MAXV = 3e5 + 10;
const ll MOD = 1e9 + 9;
ll mpow(ll b, ll e) {
    ll res = 1;
    for(ll k = 1; k <= e; k *= 2) {
        if(k & e) res = (res * b) % MOD;
        b = (b * b) % MOD;
    }
    return res;
}
int valid(int n, int inputSeq[]) {
    set<int> seen;
    int rot = -1;
    for(int i = 0; i < n; i++) {
        if(seen.count(inputSeq[i]))
            return 0;
        seen.insert(inputSeq[i]);
        if(inputSeq[i] <= n) {
            int nr = (inputSeq[i] - i + n) % n;
            if(rot != -1 && rot != nr)
                return 0;
            rot = nr;
        }
 
 
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Compilation message (stderr)

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:88:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |     for(int i = 1; i < bigs.size(); i++) {
      |                    ~~^~~~~~~~~~~~~
gondola.cpp:84:8: warning: unused variable 'cntSmall' [-Wunused-variable]
   84 |     ll cntSmall = n - cntBig;
      |        ^~~~~~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:45:44: warning: 'rot' may be used uninitialized in this function [-Wmaybe-uninitialized]
   45 |         rotate(gondolaSeq, gondolaSeq + (n - rot) % n, gondolaSeq + n);
      |                                         ~~~^~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 20 / 20
• Subtask 7: 5 / 5
• Subtask 8: 15 / 15
• Subtask 9: 15 / 15
• Subtask 10: 10 / 10