Compilare: main.cpp: In function 'int query(int, int, int)': main.cpp:29:39: warning: unused variable 'm2' [-Wunused-variable] int m = (st + dr) / 2, m1 = -INF, m2 = -INF; ^~ main.cpp: In function 'int main()': main.cpp:49:12: warning: unused variable 'i' [-Wunused-variable] int m, i, x; ^ main.cpp:51:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ main.cpp:55:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &val); ^ main.cpp:60:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^ main.cpp:63:44: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &poz, &val); ^ main.cpp:69:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &a, &b); ^