Compilare: main.cpp: In function 'unsigned int gcd(unsigned int, unsigned int)': main.cpp:19:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (v & 1) ^~ main.cpp:21:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' return gcd(u >> 1, v >> 1) << 1; ^~~~~~ main.cpp: In function 'int main()': main.cpp:51:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(iFILE, "%d", &T); ^ main.cpp:55:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(iFILE, "%d%d", &a, &b); ^