Cod sursa(job #2784359)
Utilizator | Data | 16 octombrie 2021 12:56:00 | |
---|---|---|---|
Problema | Cbinteractiv | Scor | 0 |
Compilator | c-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.53 kb |
#include <stdio.h>
int main() {
FILE *fin, *fout;
fin = fopen("cbinteractiv.in", "r");
fout = fopen("cbinteractiv.out", "w");
int n, st, dr, mijl, rasp;
scanf("%d", &n);
st = 0;
dr = n;
while (dr-st>1) {
mijl = (st+dr)/2;
printf("? %d\n", mijl);
fflush(stdout);
scanf("%d", &rasp);
if (rasp==0) {
dr = mijl;
} else {
st = mijl;
}
}
printf("! %d", st);
fclose(fin);
fclose(fout);
return 0;
}