sure.cpp:5:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
#pragma warning (disable: 4996)
sure.cpp: In function 'int main()':
sure.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < X.size(); i++) maxn = max(maxn, X[i] - 1.0L*i);
~~^~~~~~~~~~
sure.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &N);
~~~~~^~~~~~~~~~
sure.cpp:12:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for (int i = 0; i < N; i++) scanf("%Lf%Lf", &A[i], &B[i]);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~