Compilare: user.cpp:23:28: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] static const int L = 1 << 14 - 1; ^ user.cpp: In function ‘int main()’: user.cpp:71:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI i = 0;i < n;i++) ^ user.cpp:75:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI i = 0;i < n;i++) ^ user.cpp:76:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI j = i;j < n;j++) ^ user.cpp:77:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI k = j;k < n;k++) { ^ user.cpp:81:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI i = 0;i < n;i++) ^ user.cpp:82:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI k = i;k < n;k++) ^ user.cpp:83:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(UI j = k;j < n;j++) { ^ user.cpp:70:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &s); ^ user.cpp:72:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^