Pagini recente » Cod sursa (job #2563116) | Cod sursa (job #2821377) | Cod sursa (job #275011) | Cod sursa (job #2675298) | Cod sursa (job #2438584)
#include<cstdio>
#define MAX_N 100000
int v[MAX_N], n, m;
int binarySearch0(int val) {
int left, right, mid, poz;
left = 0; right = n - 1;
poz = -2;
while(left <= right) {
mid = (left + right) >> 1;
if(v[mid] == val) {
poz = mid;
left = mid + 1;
} else if(val < v[mid])
right = mid - 1;
left = mid + 1;
}
return poz;
}
int binarySearch1(int val) {
int left, right, mid, poz;
left = 0; right = n - 1;
poz = -1;
while(left <= right) {
mid = (left + right) >> 1;
if(v[mid] <= val) {
poz = mid;
left = mid + 1;
} else right = mid - 1;
}
return poz;
}
int binarySearch2(int val) {
int left, right, mid, poz;
left = 0; right = n - 1;
poz = -1;
while(left <= right) {
mid = (left + right) >> 1;
if(v[mid] >= val) {
poz = mid;
right = mid - 1;
} else left = mid + 1;
}
return poz;
}
int main() {
int i, op, x;
FILE* fin, *fout;
fin = fopen("cautbin.in","r");
fout = fopen("cautbin.out","w");
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",&op,&x);
if(op == 0)
fprintf(fout,"%d\n",binarySearch0(x)+1);
else if(op == 1)
fprintf(fout,"%d\n",binarySearch1(x)+1);
else fprintf(fout,"%d\n",binarySearch2(x)+1);
}
fclose(fin);
fclose(fout);
return 0;
}