Pagini recente » Cod sursa (job #2461780) | Cod sursa (job #938400) | Cod sursa (job #1283678) | Cod sursa (job #980456) | Cod sursa (job #3322831)
//https://www.nerdarena.ro/problema/cautbin
//https://www.infoarena.ro/problema/cautbin
//#pragma GCC optimize ("Ofast")
//#pragma GCC optimize ("fast-math")
//#pragma GCC optimize ("unroll-loops")
//#define _USE_MATH_DEFINES
//#define _CRT_SECURE_NO_DEPRECATE
#include <cstdio>
//#include <iostream>
//#include <fstream>
//#include <vector>
//#include <cstring>
//#include <cmath>
//#include <bitset>
//#include <queue>
//#include <stack>
//#include <utility>
//#include <algorithm>
//#include <string>
//#include <map>
//#include <unordered_map>
//#include <set>
//#include <unordered_set>
//#include <cstdint>
//#include <climits>
//#include <iomanip>
//#include <cstdio>
//#include <tuple>
using namespace std;
const int NRMAX = 100000;
int main()
{
FILE* fin = fopen("cautbin.in", "r");
FILE* fout = fopen("cautbin.out", "w");
int n, m, i, t, nr;
static int v[NRMAX];
fscanf(fin, "%d", &n);
for (i = 0; i < n; ++i)
fscanf(fin, "%d", &v[i]);
fscanf(fin, "%d", &m);
for (i = 0; i < m; ++i)
{
fscanf(fin, "%d %d", &t, &nr);
int p = -1, st = 1;
while (st * 2 <= n)
st <<= 1;
int st_copy = st;
asm volatile(
"addl $1, %[val]\n\t"
"subl $1, %[val]"
: [val] "+r"(st_copy)
);
(void)st_copy;
if (t == 0)
{
while (st)
{
int idx = p + st;
asm volatile(
"cmp %[i], %[limit]"
:
: [i]"r"(idx), [limit]"r"(n)
);
if (idx < n && v[idx] <= nr)
p += st;
st >>= 1;
}
if (p != -1 && v[p] == nr)
fprintf(fout, "%d\n", p + 1);
else
fprintf(fout, "-1\n");
}
else if (t == 1)
{
while (st)
{
if (p + st < n && v[p + st] <= nr)
p += st;
st >>= 1;
}
fprintf(fout, "%d\n", p + 1);
}
else
{
while (st)
{
if (p + st < n && v[p + st] < nr)
p += st;
st >>= 1;
}
fprintf(fout, "%d\n", p + 2);
}
}
return 0;
}