Compilare: main.cpp: In function 'int main()': main.cpp:17:82: warning: unused variable 'j' [-Wunused-variable] int n, m, l, c, lc, cc, i, x, minim=2000000000, first, last, ls, cs, ld, cd, j; ^ main.cpp:21:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d\n" ,&n ,&m); ^ main.cpp:71:15: warning: 'cd' may be used uninitialized in this function [-Wmaybe-uninitialized] ht[ld][cd]=1; ~~~~~~~~~~^~ main.cpp:71:15: warning: 'ld' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:128:24: warning: 'cs' may be used uninitialized in this function [-Wmaybe-uninitialized] if (minim>hc[ls][cs] && hc[ls][cs]!=0) { ~~~~~~~~~^ main.cpp:128:24: warning: 'ls' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:54:15: warning: 'cc' may be used uninitialized in this function [-Wmaybe-uninitialized] hc[lc][cc]=1; ~~~~~~~~~~^~ main.cpp:54:15: warning: 'lc' may be used uninitialized in this function [-Wmaybe-uninitialized]