Submission #887551

#	Time	Username	Problem	Language	Result	Execution time	Memory
887551		salmon	Let's Win the Election (JOI22_ho_t3)	C++14	0 / 100	1 ms	2396 KiB

Main

#include <bits/stdc++.h>
using namespace std;

int N;
int M;
long long int A[300100];
long long int B[300100];
const long long int inf = 2e18;

int main(){
    scanf(" %d",&N);
    scanf(" %d",&M);

    for(int i = 0; i < N; i++){
        scanf(" %lld",&A[i]);
    }

    for(int i = 0; i < N; i++){
        scanf(" %lld",&B[i]);
    }

    long long int s = 0;
    long long int e = inf;

    while(s != e){
        long long int m = (s + e + 1)/2;

        long long int free = 0;

        for(int i = 0; i < N; i++){
            //if(B[i] > A[i]){
                free += M;
                free -= (m + B[i] - 1) / B[i];
                if(free < -M * N){
                    break;
                }
            /*}
            else{
                if( (m + A[i] - 1)/A[i] >= M){
                    long long int v = max(0LL,m - A[i] * M);
                    free -= (v + B[i] - 1)/ B[i];
                }
                else{
                    free += M;
                    free -= (m + A[i] - 1)/A[i];
                }
            }*/
        }

        if(free >= 0){
            s = m;
        }
        else{
            e = m - 1;
        }
    }

    printf("%lld",s);
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf(" %d",&N);
      |     ~~~~~^~~~~~~~~~
Main.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf(" %d",&M);
      |     ~~~~~^~~~~~~~~~
Main.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf(" %lld",&A[i]);
      |         ~~~~~^~~~~~~~~~~~~~~
Main.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         scanf(" %lld",&B[i]);
      |         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 33
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23