Compilare: main.cpp: In function 'void solve()': main.cpp:52:20: warning: conversion lacks type at end of format [-Wformat=] scanf("%ll", &x); ^ main.cpp:52:20: warning: too many arguments for format [-Wformat-extra-args] main.cpp:53:20: warning: conversion lacks type at end of format [-Wformat=] scanf("%ll", &y); ^ main.cpp:53:20: warning: too many arguments for format [-Wformat-extra-args] main.cpp:52:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%ll", &x); ^ main.cpp:53:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%ll", &y); ^ main.cpp: In function 'int main()': main.cpp:65:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eqset.in", "r", stdin); ^ main.cpp:66:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eqset.out", "w", stdout); ^ main.cpp:69:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^