Compilare: main.cpp: In function 'int main()': main.cpp:24:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } if(k==n){ ~^~~ main.cpp:13:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %lld",&n,&s); ^ main.cpp:16:27: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&p[1]); ^ main.cpp:20:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&p[i]); ^