Compilare: user.cpp: In function ‘int main()’: user.cpp:81:27: warning: for increment expression has no effect [-Wunused-value] for(int i=1; i<=nrEv; i) ^ user.cpp:84:30: warning: unused variable ‘type’ [-Wunused-variable] int coord=ev[i].x.x, type=ev[i].x.y, which=ev[i].y; ^ user.cpp:84:46: warning: unused variable ‘which’ [-Wunused-variable] int coord=ev[i].x.x, type=ev[i].x.y, which=ev[i].y; ^ user.cpp:69:15: warning: unused variable ‘c’ [-Wunused-variable] int a, b, c, d; ^ user.cpp:69:18: warning: unused variable ‘d’ [-Wunused-variable] int a, b, c, d; ^ user.cpp: In function ‘void read(int&)’: user.cpp:34:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^ user.cpp:45:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:67:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("praslea.in", "r", stdin); ^ user.cpp:68:35: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, buffMax, stdin); ^