Submission #658923

#	Time	Username	Problem	Language	Result	Execution time	Memory
658923		Jeff12345121	Horses (IOI15_horses)	C++14	17 / 100	12 ms	8276 KiB

horses

#include <bits/stdc++.h>
#include "horses.h"

#define REP(i,n) for(int i = 1; i <= (n); i++)
using namespace std;

#ifdef LOCAL
ifstream in("in.in");
ofstream out("out.out");
#endif

const int nmax = 1005;
int n,x[nmax],y[nmax],inf = (1LL << 60),MOD = 1000000007;

int init(int tn, int* tx,int* ty) {
    n = tn;
    for (int i = 0; i < n; i++) {
        x[i] = tx[i];
        y[i] = ty[i];
    }

    int horses = 1,max_sol = -inf;
    for (int i = 0; i < n; i++) {
        horses = 1LL * horses * x[i] % MOD;
        max_sol = max(1LL * max_sol , 1LL * horses * y[i] % MOD);
    }

    return  max_sol;
}
int updateX(int pos, int val) {
    x[pos] = val;
    int horses = 1,max_sol = -inf;
    for (int i = 0; i < n; i++) {
        horses = 1LL * horses * x[i] % MOD;
        max_sol = max(1LL * max_sol , 1LL * horses * y[i] % MOD);
    }

    return  max_sol;
}

int updateY(int pos, int val) {
    y[pos] = val;
    int horses = 1,max_sol = -inf;
    for (int i = 0; i < n; i++) {
        horses = 1LL * horses * x[i] % MOD;
        max_sol = max(1LL * max_sol , 1LL * horses * y[i] % MOD);
    }

    return  max_sol;
}
#ifdef LOCAL
/*int tx[nmax],ty[nmax];
int32_t main() {
    in >> n;
    for (int i = 0; i < n; i++) {
        in >> tx[i];
    }
    for (int i = 0; i < n; i++) {
        in >> ty[i];
    }

    out << init(n,tx,ty) << "\n";
    int m;
    in >> m;
    for (int i = 0; i < m; i++) {
        int type,pos,val;
        in >> type >> pos >> val;
        if (type == 0) {
            out << updateX(pos, val);
        }
        if (type == 1) {
            out << updateY(pos,val);
        }
    }
}*/
#endif

Compilation message (stderr)

horses.cpp:13:34: warning: overflow in conversion from 'long long int' to 'int' changes value from '1152921504606846976' to '0' [-Woverflow]
   13 | int n,x[nmax],y[nmax],inf = (1LL << 60),MOD = 1000000007;
      |                             ~~~~~^~~~~~
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:24:38: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   24 |         horses = 1LL * horses * x[i] % MOD;
      |                  ~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp:25:22: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   25 |         max_sol = max(1LL * max_sol , 1LL * horses * y[i] % MOD);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:34:38: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   34 |         horses = 1LL * horses * x[i] % MOD;
      |                  ~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp:35:22: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   35 |         max_sol = max(1LL * max_sol , 1LL * horses * y[i] % MOD);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:45:38: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   45 |         horses = 1LL * horses * x[i] % MOD;
      |                  ~~~~~~~~~~~~~~~~~~~~^~~~~
horses.cpp:46:22: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   46 |         max_sol = max(1LL * max_sol , 1LL * horses * y[i] % MOD);
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 0 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23