19 lines
494 B
C++
19 lines
494 B
C++
#include<stdio.h>
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#include<stdlib.h>
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int cmp(const void *a, const void *b){
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return *(int *)a - *(int *)b;
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}
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int main() {
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int x[1001], n, i, j, tickets;
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while(scanf("%d", &n) != EOF){
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for(i = 0; i < n; i++)
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scanf("%d", x + i);
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qsort(x, n, sizeof(x[0]), cmp);
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tickets = 0;
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for(i = 0; i < n; i++)
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if(x[i] * (n - i) > tickets)
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tickets = x[i] * (n - i);
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printf("%d\n", tickets);
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}
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}
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